https://saibertek.systems/aiadmin/til/ue4/ue4lockups_sounds.rar
This might give you a further lead - disconnecting my DP monitor didn’t do anything, but yesterday I noticed a short “beep” coming from my speakers whenever the editor unfroze.
In fact, there are two noises - one is an “eeeeeeeeek” that lasts for about three seconds, which is the “lockup phase” if you will, which is then ended by the “beep” sound.
On this recording, you can hear three of the lockups happening - one at timestamp 00:02, the second one at 00:10, and the third one at 00.24.
Sorry for all the static - also make sure to amplify the volume massively so you can hear what’s happening.
It was very hard to catch with my microphone, so this was the best I could do.
P.S.:
I’ve tracked down the issue now - it is definitely caused by my external SSD.
NOT a UE4 problem.
Are you running UE from an external SSD drive as well, by any chance?
Cheers