Are you connecting to a virtual desktop session or a physical desktop session?
I believe I connect to virtual desktop. My connection scheme is: 1) connect to host 2) connecting to Linux virtual desktop
Can you disable HW decoding in NoMachine on the Mac side?
It helped, I disabled HW decoding and have been working with that ~3 days. There was no crashes since I disabled it, however before it crashed once or two within a day. Maybe it now works a bit slower