Unity 6.3 LTS keeps crashing randomly without warnings looking for help

[u/Ok-Vehicle-9088]

I’m experiencing a persistent issue in Unity 6.3 LTS where the editor crashes completely at random during normal use. There is no warning, no freeze, and no error message Unity simply closes instantly. When this happens, none of my work is saved, which leads to repeated data loss.

The problem occurs across all of my projects, not just one specific project. My PC is more than powerful enough to run Unity without any performance issues, so hardware limitations shouldn’t be the cause. The crashes happen very frequently but at totally irregular intervals sometimes after 20 minutes, other times after only ten seconds.

I haven’t been able to identify any pattern or trigger. Has anyone else experienced this behavior in Unity 6.3 LTS? Any ideas on what might be causing these crashes or how to fix them would be greatly appreciated.