Aegisub стал валиться

alex@laptop:~$ aegisub-3.0 
../src/unix/threadpsx.cpp(1396): assert "Assert failure" failed in SetPriority(): impossible to set thread priority in this state
The program 'aegisub-3.0' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadLength (poly request too large or internal Xlib length erro'.
  (Details: serial 394897 error_code 16 request_code 60 minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)