My installed build from carla unreal source crashes at open project dialog on Linux

crashinfo–pid-91584-889AE324A1284803B209142A84F3E13E.zip

It used to be fine, but one day, it suddenly crashed at start (I double clicked unrealEditor until the open project dialog showed up, then the error reporter dialog just pop up). I can’t remember what changes I made (nothing important, though). I can’t open the editor since then.

I already tried deleting the whole installed build, rebuilding it from source, but still the same. I tried deleting /home/richard/.config/Epic, it recompiled shaders, then still crashed.

Is there anything that I am missing? plz help.