MacOS Catalina 10.15.4 Crashes

Uninstall the Symantec software according to the developer's instructions and run for a while to see if there's any improvement.

There's no reason to run any "cleaning", "optimizing", "speed-up" or anti-virus apps on a Mac. They are unnecessary. If you have any other than Symantec download and run Etrecheck. Etrecheck is a diagnostic tool that was developed by one of the most respected users here in the ASC and recommended by Apple Support  to provide a snapshot of the system and help identify the more obvious culprits that can adversely affect a Mac's performance.

Copy the report

and use the Add Text button to include the report in your reply. How to use the Add Text Feature When Posting Large Amounts of Text, i.e. an Etrecheck Report

IMPORTANT:

Before running Etrecheck assign Full Disk Access to Etrecheck in the app's Privacy preference pane so that it can get additional information from the Console and log files for the report:

ALSO IMPORTANT:

Then we can examine the report and see if we can determine the root of the problem.

Update to 10.15.5 went smoothly. Left machine on overnight, reset to the "Put Hard Disk To Sleep" option in System Preferences, it went to sleep, woke up normally WITHOUT incident! First time since before 10.15.4 was installed. Also, all peripherals woke-up instantly, without sputtering or delay, which I think somehow contributed to the earlier crashing. In the 10.15.5 Release Notes, they specifically state they did something to fix awake problem with external displays connected.

Going to run several more tests thru Sunday and if no failures, will declare this bug fixed in my mind.

MACHINE: MacBook Pro 16" (16 GB RAM, Core i7)

DEVICE CONNECTIONS:

• LG 5K UltraFine Monitor (plugged directly in MBP)
• LG 4K Monitor (plugged directly in MBP, oppose side from the 5K)
• G-Drive, 4 TB Storage (plugged into LG 5K)
• Sandisk SSD, 2 TB Storage (plugged directly in MBP)
• USB-C to RJ45 Adapter (plugged into LG 4K)
• USB Lightening Cable (plugged into LG 4K)
• USB BOSE Headset Power Cable (plugged into LG 4K)
• Epson Single Doc Scanner (plugged into LG 5K)

dalefromsaugus Said:

"MacOS Catalina 10.15.4 Crashes: My MacBook started crashing randomly after the last update. The screensaver and power saving is off, and the reboots happen if applications are open, or they are closed and it is just sitting idle."

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A New Update is Out:

Seems providing feedback is was great. As, in turn, Apple to created a fix. On the 8th, this was released: Catalina 10.15.4 Supplemental Update. This update with be included in the reinstallation, which may fix this update issue.

Important: Backup your Mac First, with a Time Machine Backup.

Still waiting on Apple. I received follow-up early last week with questions about how my sleep settings were configured in System Preferences. I answered those, haven’t heard back since. I’ve worked around my crashes by disabling “Put Hard Disk To Sleep” setting. I’ve disabled all sleep settings EXCEPT for the display. Then, I shut laptop down at bedtime and upon doing so, check the “ReOpen Apps & Windows Upon Startup” option.

This workaround has worked well and I’ll continue it until Apple has a fix. I plan to call-in to Apple this week for a status, since they would have had the problem about 2 weeks. Gotta give them some consideration on cycle-time as their services are slowed due to the COVID-19 situation.

I had the same issue with my mac book pro mid 2014. After updating to 10.15.4.

the system would shutdown after few minutes.

I searched online and found some page where they asked me to reset the SMC.

shutdown the macbook

the press shift-control-option and power button all at once.

then release the shift-control- option and press just the power button to start the macbook

doing this kind of solved my problem. I don’t know how or why. May be this would help you.

v

Problem appears to be resolved after upgrading to macOS 10.15.5. After doing so, reset the SMC on your Mac and see how it goes for you.

How to reset the SMC of your Mac - Apple Support

Free-Dawg Said:

"Supplemental Update fixes nothing. Still crashing after screen-saver idle. Reboot has happened twice since the supplemental update was applied."

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The Ultimate Solution...

Reinstall the macOS Anew:

I. If it applies: Back up your Mac with Time Machine - Apple Support

Then...

II. Reinstall the macOS Anew:

1. Boot: into Recovery Mode.
2. Open: Disk Utilities
3. Delete: the partition
4. Reinstall: the macOS

Once Installed Anew...

III. Reinstall All the Software:

1. Use Migration Assistant to move Apps a Files back in.
2. Ask developers for new software keys - but contact the developers only --- none other --- or you may end up with malware and spyware installed.

Support Specialist says it takes about 3 or 4 business days from Date of submission before Engineering will get back to him. Since diagnostic and crash data from my system was sent to them on April 9th, I expect to hear back from him mid to late next week.

In the meantime, what I’ve done to workaround the issue is to disable “Put Hard Disk To Sleep” in the Energy Savings tab in System Preferences. Also disable use of power nap. I recommend keeping the screen-sleep option on but don’t let the disk turn off. I did that all yesterday and had no auto reboot incidents.

Next, I plan to shut my laptop down over night. In doing that, I selected the “Open Running Windows/Apps Upon Next Login” box and this should put things “almost” back the way I had them before the shutdown.

Both of these steps will mitigate potential data loss from unexpected reboots AND reduce wear-and-tear on mechanical disk drives, if indeed the system does go through an entire reboot sequence after it crashes.

Download and run Etrecheck. Etrecheck is a diagnostic tool that was developed by one of the most respected users here in the ASC and recommended by Apple Support  to provide a snapshot of the system and help identify the more obvious culprits that can adversely affect a Mac's performance.

Copy the report

and use the Add Text button to include the report in your reply. How to use the Add Text Feature When Posting Large Amounts of Text, i.e. an Etrecheck Report

IMPORTANT:

Before running Etrecheck assign Full Disk Access to Etrecheck in the app's Privacy preference pane so that it can get additional information from the Console and log files for the report:

ALSO IMPORTANT:

Then we can examine the report and see if we can determine what might be contributing to the problem.

I've turned off the sleep function entirely at this point and the issue seems resolved. No turn offs or crashes, and have been pushing the laptop pretty hard.

I've been traveling with this model and the only odd thing is that I have to push a button in order to wake the screen after closing the lid, but that isn't a big deal.

And yeah, I agree with the above poster, reinstalling software or the OS is unacceptable as a fix. I have a lot of pro level apps installed, and can't just stop in the middle of a giant project and start reinstalling apps just to troubleshoot an update. I dont install "cleaning" or any other untested junk, this is an issue with the update from Apple.

My bet is on Norton, but Logitech has released some crappy kernel extensions in the past.

Start by uninstalling Norton AV following the developer's instructions or uninstaller.

Norton doesn't provide anything but problems.

Replying to my earlier comment: Since I have quit playing a particular game in Facebook, I've no longer experienced any crashes. It's a game that "squeaked" by an earlier OS update, squeaking meaning there were several hesitations in loading the flash drive, but eventually it would load. Just a thought......

knittenorma Said:

"April 9, 2020: Got notification of update to original 10.15.4. On restart, system stops installing software. I waited about 45 minutes, then unplugged computer. Plugged it back in and computer came up. I am getting notice to install the software update but will not. If system updates on its own, I'll follow same procedure."

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Create a New Administrator:

Try creating a new administrator to perform this install. If it work with the new administrator, then transfer everything over to the new user, and then trash this current user. You should be good to go from there.

Then Try a Manual Download:

Go Here: Download macOS Catalina 10.15.4 Supplemental Update - Apple Support. Connect this directly into your router using Ethernet, if an available option to you. Elsewise, use Wi-Fi.

Important: Download it from Apple and none other. Elsewise, it may be a scam, or malware.

I’ve worked around my crashes by disabling “Put Hard Disk To Sleep” setting. I’ve disabled all sleep settings EXCEPT for the display. Then, I shut laptop down at bedtime and upon doing so, check the “ReOpen Apps & Windows Upon Startup” option.

That's way many of the users here who are experiencing the same problem are doing as a routine workflow.