Hi Tom and thanks for assisting.
Here is the report, hope it helps
EtreCheck version: 5.6.5 (5229)
Report generated: 2020-12-31 10:12:01
Download EtreCheck from https://etrecheck.com
Runtime: 2:26
Performance: Excellent
Sandbox: Enabled
Full drive access: Disabled
Problem: Apps are crashing
Description:
While using FCP, memory usage keeps increasing, up to 40 + GB, even wi
thout tasking, resulting RAM memory to reduce to unworkable levels ( m
ust ForceQuit )
Major Issues:
Anything that appears on this list needs immediate attention.
Runaway process - A process is using a large percentage of your CPU.
Adobe Flash Player installed - Adobe Flash Player is installed on this computer. This is a security risk and no longer supported.
Minor Issues:
These issues do not need immediate attention but they may indicate future problems or opportunities for improvement.
No Time Machine backup - Time Machine backup not found.
Clean up - There are orphan files that could be removed.
Unsigned files - There are unsigned software files installed. Apple has said that unsigned software will not run by default in a future version of the operating system.
Corrupt hosts file - Hosts file is corrupt.
32-bit Apps - This computer has 32-bits apps will not work on current versions of the operating system.
Limited drive access - More information may be available with Full Drive Access.
Kernel extensions present - This computer has kernel extensions that may not work in the future.
Hardware Information:
iMac (Retina 4K, 21.5-inch, 2017)
iMac Model: iMac18,2
3.4 GHz Quad-Core Intel Core i5 (i5-7500) CPU: 4-core
8 GB RAM - Upgradeable by an Apple Authorized Service Provider
BANK 0/DIMM0 - 4 GB DDR4 SO-DIMM 2400
BANK 1/DIMM0 - 4 GB DDR4 SO-DIMM 2400
Video Information:
Radeon Pro 560 - VRAM: 4 GB
iMac (built-in) 4096 x 2304
Drives:
disk0 - APPLE HDD HTS541010A9E632 1.00 TB (Mechanical - 5400 RPM)
Internal SATA 3 Gigabit Serial ATA
disk0s1 - EFI (MS-DOS FAT32) [EFI] 210 MB
disk0s2 [APFS Fusion Drive] 1000.00 GB
disk2 [APFS Virtual drive] 1.03 TB (Shared by 5 volumes)
disk2s1 - M*****************a (APFS) [APFS Virtual drive] (Shared - 364.95 GB used)
disk2s2 - Preboot (APFS) [APFS Preboot] (Shared)
disk2s3 - Recovery (APFS) [Recovery] (Shared - 529 MB used)
disk2s4 - VM (APFS) [APFS VM] (Shared - 3.22 GB used)
disk2s5 - Macintosh HD (APFS) (Shared - 11.25 GB used)
disk1 - APPLE SSD SM0032L 28.00 GB (Solid State - TRIM: Yes)
Internal PCI-Express 8.0 GT/s x2 NVM Express
disk1s1 - EFI [EFI] 315 MB
disk1s2 [APFS Fusion Drive] 27.69 GB
disk2 [APFS Virtual drive] 1.03 TB (Shared by 5 volumes)
disk2s1 - M*****************a (APFS) [APFS Virtual drive] (Shared - 364.95 GB used)
disk2s2 - Preboot (APFS) [APFS Preboot] (Shared)
disk2s3 - Recovery (APFS) [Recovery] (Shared - 529 MB used)
disk2s4 - VM (APFS) [APFS VM] (Shared - 3.22 GB used)
disk2s5 - Macintosh HD (APFS) (Shared - 11.25 GB used)
disk3 - Seagate BUP RD 4.00 TB
External USB 5 Gbit/s USB
disk3s1 - EFI (MS-DOS FAT32) [EFI] 210 MB
disk3s2 - S*********c 4.00 TB (3.43 TB used)
Mounted Volumes:
disk2s1 - M*****************a [APFS Virtual drive]
1.03 TB (Shared - 364.95 GB used, 645.48 GB available, 643.12 GB free)
APFS
Mount point: /System/Volumes/Data
disk2s3 - Recovery [Recovery]
1.03 TB (Shared - 529 MB used, 643.12 GB free)
APFS
Mount point: /Volumes/Recovery
