The program 'WebKitWebProcess' received an X Window System error.

Tested the latest binary x86_64 and it results in gray window and error:

$ ./signal-captcha-helper 

(WebKitWebProcess:39686): Gdk-ERROR **: 22:22:27.282: The program 'WebKitWebProcess' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadValue (integer parameter out of range for operation)'.
  (Details: serial 206 error_code 2 request_code 151 (GLX) minor_code 34)
  (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 GDK_SYNCHRONIZE environment
   variable to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

This used to work on the same machine earlier. Not sure what's wrong.