So I did everything as you suggested and the problem still exists.
Process: Logic Pro X [356]
Path: /Applications/Logic Pro X.app/Contents/MacOS/Logic Pro X
Identifier: com.apple.logic10
Version: 10.2.0 (3987.29)
Build Info: MALogic-3987029000000000~2
App Item ID: 634148309
App External ID: 812006144
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Logic Pro X [356]
User ID: 501
Date/Time: 2015-09-19 12:22:21.103 +0800
OS Version: Mac OS X 10.10.5 (14F27)
Report Version: 11
Anonymous UUID: 472FA6DC-8E57-359C-2334-2456C5E6609F
Time Awake Since Boot: 210 seconds
Crashed Thread: 13 ProcessThread4/512
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00007fc76d588580
VM Regions Near 0x7fc76d588580:
MALLOC_NANO 0000618000600000-0000618001e00000 [ 24.0M] rw-/rwx SM=PRV
-->
MALLOC_TINY 00007fc96ac00000-00007fc96b000000 [ 4096K] rw-/rwx SM=PRV
Thread 0:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff919e84de mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff919e764f mach_msg + 55
2 com.apple.CoreFoundation 0x00007fff9aef0eb4 __CFRunLoopServiceMachPort + 212
3 com.apple.CoreFoundation 0x00007fff9aef037b __CFRunLoopRun + 1371
4 com.apple.CoreFoundation 0x00007fff9aeefbd8 CFRunLoopRunSpecific + 296
5 com.apple.HIToolbox 0x00007fff98d2d56f RunCurrentEventLoopInMode + 235
6 com.apple.HIToolbox 0x00007fff98d2d2ea ReceiveNextEventCommon + 431
7 com.apple.HIToolbox 0x00007fff98d2d12b _BlockUntilNextEventMatchingListInModeWithFilter + 71
8 com.apple.AppKit 0x00007fff95e998ab _DPSNextEvent + 978
9 com.apple.AppKit 0x00007fff95e98e58 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 346
10 com.apple.AppKit 0x00007fff95e8eaf3 -[NSApplication run] + 594
11 com.apple.AppKit 0x00007fff95e0b244 NSApplicationMain + 1832
12 com.apple.logic10 0x0000000106b0501e 0x10646f000 + 6905886
13 libdyld.dylib 0x00007fff9c5e45c9 start + 1
Thread 1:: Dispatch queue: com.apple.libdispatch-manager
0 libsystem_kernel.dylib 0x00007fff919ee232 kevent64 + 10
1 libdispatch.dylib 0x00007fff8cf3ca6a _dispatch_mgr_thread + 52
Thread 2:
0 libsystem_kernel.dylib 0x00007fff919ed94a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff952113dd start_wqthread + 13
Thread 3:: MIDIClientNotificationThread
0 libsystem_kernel.dylib 0x00007fff919e84de mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff919e764f mach_msg + 55
2 com.apple.CoreFoundation 0x00007fff9aef0eb4 __CFRunLoopServiceMachPort + 212
3 com.apple.CoreFoundation 0x00007fff9aef037b __CFRunLoopRun + 1371
4 com.apple.CoreFoundation 0x00007fff9aeefbd8 CFRunLoopRunSpecific + 296
5 com.apple.Foundation 0x00007fff91403b29 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 278
6 com.apple.Foundation 0x00007fff91421d9e -[NSRunLoop(NSRunLoop) runUntilDate:] + 108
7 com.apple.logic10 0x000000010679f839 0x10646f000 + 3344441
8 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
9 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
10 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 4:: SeqTimer
0 libsystem_kernel.dylib 0x00007fff919ed136 __psynch_cvwait + 10
1 com.apple.CoreServices.CarbonCore 0x00007fff99797c5e TSWaitOnConditionTimedRelative + 147
2 com.apple.CoreServices.CarbonCore 0x00007fff99797839 TSWaitOnSemaphoreCommon + 403
3 com.apple.CoreServices.CarbonCore 0x00007fff9977d628 TimerThread + 87
4 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
5 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
6 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 5:: ExtendedAudioFileScheduler::WorkerThreadProc
0 libsystem_kernel.dylib 0x00007fff919ed136 __psynch_cvwait + 10
1 com.apple.music.apps.MAFiles 0x00000001096ea9fb ExtendedAudioFileScheduler::WorkerThreadProc() + 123
2 com.apple.music.apps.MAFiles 0x00000001096ea689 ExtendedAudioFileScheduler::WorkerThreadProc(void*) + 9
3 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
4 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
5 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 6:: ExtendedAudioFileScheduler::WorkerThreadProc
0 libsystem_kernel.dylib 0x00007fff919ed136 __psynch_cvwait + 10
1 com.apple.music.apps.MAFiles 0x00000001096ea9fb ExtendedAudioFileScheduler::WorkerThreadProc() + 123
2 com.apple.music.apps.MAFiles 0x00000001096ea689 ExtendedAudioFileScheduler::WorkerThreadProc(void*) + 9
3 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
4 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
5 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 7:
0 libsystem_kernel.dylib 0x00007fff919e84de mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff919e764f mach_msg + 55
2 com.apple.audio.midi.CoreMIDI 0x00000001083b8dbb XServerMachPort::ReceiveMessage(int&, void*, int&) + 125
3 com.apple.audio.midi.CoreMIDI 0x00000001083d476e MIDIProcess::RunMIDIInThread() + 112
4 com.apple.audio.midi.CoreMIDI 0x00000001083b9e5a XThread::RunHelper(void*) + 10
5 com.apple.audio.midi.CoreMIDI 0x00000001083b9a8b CAPThread::Entry(CAPThread*) + 109
6 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
7 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
8 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 8:: com.apple.audio.IOThread.client
0 libsystem_kernel.dylib 0x00007fff919e84de mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff919e764f mach_msg + 55
2 com.apple.audio.CoreAudio 0x00007fff9941057e HALB_MachPort::SendMessageWithReply(unsigned int, unsigned int, unsigned int, unsigned int, mach_msg_header_t*, bool, unsigned int) + 98
3 com.apple.audio.CoreAudio 0x00007fff9941050c HALB_MachPort::SendSimpleMessageWithSimpleReply(unsigned int, unsigned int, int, int&, bool, unsigned int) + 42
4 com.apple.audio.CoreAudio 0x00007fff9940eaa9 HALC_ProxyIOContext::IOWorkLoop() + 965
5 com.apple.audio.CoreAudio 0x00007fff9940e612 HALC_ProxyIOContext::IOThreadEntry(void*) + 88
6 com.apple.audio.CoreAudio 0x00007fff9940e4e3 HALB_IOThread::Entry(void*) + 157
7 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
8 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
9 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 9:: com.apple.audio.IOThread.client
0 libsystem_kernel.dylib 0x00007fff919e84de mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff919e764f mach_msg + 55
2 com.apple.audio.CoreAudio 0x00007fff9941057e HALB_MachPort::SendMessageWithReply(unsigned int, unsigned int, unsigned int, unsigned int, mach_msg_header_t*, bool, unsigned int) + 98
3 com.apple.audio.CoreAudio 0x00007fff9941050c HALB_MachPort::SendSimpleMessageWithSimpleReply(unsigned int, unsigned int, int, int&, bool, unsigned int) + 42
4 com.apple.audio.CoreAudio 0x00007fff9940eaa9 HALC_ProxyIOContext::IOWorkLoop() + 965
5 com.apple.audio.CoreAudio 0x00007fff9940e612 HALC_ProxyIOContext::IOThreadEntry(void*) + 88
6 com.apple.audio.CoreAudio 0x00007fff9940e4e3 HALB_IOThread::Entry(void*) + 157
7 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
8 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
9 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 10:: ProcessThread1/512
0 libsystem_kernel.dylib 0x00007fff919e851a semaphore_wait_trap + 10
1 com.apple.music.apps.MAAudioEngine 0x00000001097cc682 MD::CallProcessThread1(void*) + 850
2 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
3 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
4 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 11:: ProcessThread2/512
0 libsystem_kernel.dylib 0x00007fff919e851a semaphore_wait_trap + 10
1 com.apple.music.apps.MAAudioEngine 0x00000001097cca55 MD::CallProcessThread2(void*) + 869
2 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
3 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
4 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 12:: ProcessThread3/512
0 libsystem_kernel.dylib 0x00007fff919e851a semaphore_wait_trap + 10
1 com.apple.music.apps.MAAudioEngine 0x00000001097cce05 MD::CallProcessThread3(void*) + 869
2 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
3 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
4 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 13 Crashed:: ProcessThread4/512
0 com.apple.music.apps.MADSP 0x0000000108b6c247 CHermiteTableLookUp::ProcessSample(float&) + 87
1 com.apple.music.apps.MADSP 0x00000001086d83de CCompressorDBX::Process() + 270
2 com.apple.music.apps.MADSP 0x00000001086c0072 CCompressor::OnProcess(TProcessInfo*) + 1858
3 com.apple.music.apps.MADSP 0x0000000108a2ecbb CBasicFX::Process(TProcessInfo*) + 667
4 com.apple.music.apps.MADSP 0x000000010869d671 CPlugInShell::Execute(TProcessInfo*) + 609
5 com.apple.music.apps.MAAudioEngine 0x0000000109802039 MDPlugSteffan::Process(MDPlugInputBusList const*, MDPlugOutputBusList const*, long, long, long, float const*, eProcessLevel) + 505
6 com.apple.music.apps.MAAudioEngine 0x00000001097f4e2b MDPlug::_Process(MDPlugInputBusList const*, MDPlugOutputBusList const*, long, long, long, float const*, eProcessLevel) + 1435
7 com.apple.music.apps.MAAudioEngine 0x00000001097bee3e MD::PluginProcess(MDProcInfo*, MDPlug*, long, long, long, eProcessLevel) + 4350
8 com.apple.music.apps.MAAudioEngine 0x00000001097c2c45 MD::StreamProcessing(eProcessLevel, long, long, long) + 10869
9 com.apple.music.apps.MAAudioEngine 0x00000001097c478a MD::Process(eProcessLevel) + 3194
10 com.apple.music.apps.MAAudioEngine 0x00000001097cd0dd MD::CallProcessThread4(void*) + 653
11 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
12 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
13 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 14:: ProcessThread5/512
0 com.apple.music.apps.MADSP 0x00000001086dbeb3 CCompressorSSL::Process() + 595
1 com.apple.music.apps.MADSP 0x00000001086c0072 CCompressor::OnProcess(TProcessInfo*) + 1858
2 com.apple.music.apps.MADSP 0x0000000108a2ecbb CBasicFX::Process(TProcessInfo*) + 667
3 com.apple.music.apps.MADSP 0x000000010869d671 CPlugInShell::Execute(TProcessInfo*) + 609
4 com.apple.music.apps.MAAudioEngine 0x0000000109802039 MDPlugSteffan::Process(MDPlugInputBusList const*, MDPlugOutputBusList const*, long, long, long, float const*, eProcessLevel) + 505
5 com.apple.music.apps.MAAudioEngine 0x00000001097f4e2b MDPlug::_Process(MDPlugInputBusList const*, MDPlugOutputBusList const*, long, long, long, float const*, eProcessLevel) + 1435
6 com.apple.music.apps.MAAudioEngine 0x00000001097bee3e MD::PluginProcess(MDProcInfo*, MDPlug*, long, long, long, eProcessLevel) + 4350
7 com.apple.music.apps.MAAudioEngine 0x00000001097c2c45 MD::StreamProcessing(eProcessLevel, long, long, long) + 10869
8 com.apple.music.apps.MAAudioEngine 0x00000001097c478a MD::Process(eProcessLevel) + 3194
9 com.apple.music.apps.MAAudioEngine 0x00000001097cd48d MD::CallProcessThread5(void*) + 653
10 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
11 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
12 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 15:: ProcessThread6/512
0 libsystem_kernel.dylib 0x00007fff919e851a semaphore_wait_trap + 10
1 com.apple.music.apps.MAAudioEngine 0x00000001097cd915 MD::CallProcessThread6(void*) + 869
2 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
3 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
4 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 16:: ProcessThread7/512
0 libsystem_kernel.dylib 0x00007fff919e851a semaphore_wait_trap + 10
1 com.apple.music.apps.MAAudioEngine 0x00000001097cdcc5 MD::CallProcessThread7(void*) + 869
2 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
3 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
4 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 17:: ProcessThread23/512
0 libsystem_kernel.dylib 0x00007fff919e851a semaphore_wait_trap + 10
1 com.apple.music.apps.MAAudioEngine 0x00000001097d17c5 MD::CallProcessThread23(void*) + 869
2 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
3 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
4 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 18:: FileIOThread
0 libsystem_kernel.dylib 0x00007fff919ee5da pread + 10
1 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
2 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
3 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 19:: com.apple.CFSocket.private
0 libsystem_kernel.dylib 0x00007fff919ed3fa __select + 10
1 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
2 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
3 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 20:
0 libsystem_kernel.dylib 0x00007fff919ed3fa __select + 10
1 com.apple.logic10 0x0000000106acbdcd 0x10646f000 + 6671821
2 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
3 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
4 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 21:
0 libsystem_kernel.dylib 0x00007fff919e84de mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff919e764f mach_msg + 55
2 com.apple.CoreFoundation 0x00007fff9aef0eb4 __CFRunLoopServiceMachPort + 212
3 com.apple.CoreFoundation 0x00007fff9aef037b __CFRunLoopRun + 1371
4 com.apple.CoreFoundation 0x00007fff9aeefbd8 CFRunLoopRunSpecific + 296
5 com.apple.AppKit 0x00007fff95f6156b _NSEventThread + 137
6 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
7 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
8 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 22:: com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0x00007fff919e84de mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff919e764f mach_msg + 55
2 com.apple.CoreFoundation 0x00007fff9aef0eb4 __CFRunLoopServiceMachPort + 212
3 com.apple.CoreFoundation 0x00007fff9aef037b __CFRunLoopRun + 1371
4 com.apple.CoreFoundation 0x00007fff9aeefbd8 CFRunLoopRunSpecific + 296
5 com.apple.CFNetwork 0x00007fff91157420 +[NSURLConnection(Loader) _resourceLoadLoop:] + 434
6 com.apple.Foundation 0x00007fff913b1e92 __NSThread__main__ + 1345
7 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
8 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
9 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 23:: CVDisplayLink
0 libsystem_kernel.dylib 0x00007fff919ed136 __psynch_cvwait + 10
1 com.apple.CoreVideo 0x00007fff8d10aff8 CVDisplayLink::waitUntil(unsigned long long) + 240
2 com.apple.CoreVideo 0x00007fff8d10a4b3 CVDisplayLink::runIOThread() + 511
3 com.apple.CoreVideo 0x00007fff8d10a29b startIOThread(void*) + 147
4 libsystem_pthread.dylib 0x00007fff9521405a _pthread_body + 131
5 libsystem_pthread.dylib 0x00007fff95213fd7 _pthread_start + 176
6 libsystem_pthread.dylib 0x00007fff952113ed thread_start + 13
Thread 24:
0 libsystem_kernel.dylib 0x00007fff919ed94a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff952113dd start_wqthread + 13
Thread 13 crashed with X86 Thread State (64-bit):
rax: 0x00007fc96d588580 rbx: 0x00007fc96d588440 rcx: 0xffffffff80000000 rdx: 0x00007fc96faa7800
rdi: 0x00007fc96d588440 rsi: 0x000000011bd5d7dc rbp: 0x000000011bd5d7a0 rsp: 0x000000011bd5d780
r8: 0x0000000000000000 r9: 0x0000000000000200 r10: 0x0000000000000000 r11: 0x00000000000001f0
r12: 0x00007fc96d588390 r13: 0x000000011bd5d7dc r14: 0x000000011bd5d7dc r15: 0x0000000080000000
rip: 0x0000000108b6c247 rfl: 0x0000000000010247 cr2: 0x00007fc76d588580
Logical CPU: 6
Error Code: 0x00000004
Trap Number: 14
The singer in my band contacted me to say he found malware in our shared Dropbox folder. So I ran a scan and, yes it was there.
So I deleted that restarted and still Logic won't run on either profile.
My original profile doesn't have access to view the new profile's documents, but the new profile does have access to view the old profile
I feel there's something seriously wrong now.
Thank you for your help.