Macos 10.15.4 many panic's an crashes

i have been having exactly the same issue since 10.15.4, it reboots fan goes loud for a second, i have also had the corrupted screen like you are showing. My MBP 16inch is only 4 weeks old.

it was totally fine before 10.15.4

i imagine due to the current situation it will be a while before we see a fix :(

Seeing graphic glitches and crashes on an iMac late 2012 with external Monitor. Those were introduced with 10.15.4 as previously the setup was running without trouble for years. Apple couldn't care less. They call it vintage and are done with the problem. Worst customer support one could imagine.

Same here. (also with 10.15.4)

Let my Macbook Pro 15 2008 on overnight and it was turned off in the morning.

panic(cpu 1 caller 0xfffffff019b6f7b4): macOS watchdog detected

Thank god I did not have a render due this morning…

My MBP 16in has just updated 2 days again with the latest beta, problem still exsists.

its take 3 - 4 attempts to get my mac to boot now.

After a clean power down, I power up, and it tries to boot 2-4 times before getting the the login screen.

I get the apple logo, and the progress bar, which reaches about 75%, then fan goes noisy for a second and it reboots,

same again, then same again, then next time it will get me to the login screen,

My mac was totally fine before 10.15.4. i thought i would try beta to see if it resolved the issue.

I wish apple would acknowledge this issue and it get fixed, I have submitted beta feedback, and i always submit my crash reports.

I have an iMac Retina 5K, 27 inch, 2017 - I'm having exactly the same issues and it's getting right on my nerves. I went with Mac to avoid Windows instability - right now I'm experiencing a total lock-up and crash at least once per day, often more than that. I can't see any pattern to it, and forums are full of the problem.

Come on Apple - don't let us down here !

Have experienced multiple different crashes... from Bad Magic error to CATERRs and today, after doing complete reinstall of Catalina I experience the above error for the first time.

panic(cpu 1 caller 0xfffffff01fca53dc): macOS watchdog detected

What is crazy is that a friend of mine has one... not a single crash to date. And I can go for days also without a crash and then experience 3-4 in a single day. Makes no sense.