I'm getting something very similar on ubuntu
```
PS /usr/local/bin/rad-reader> .\rad-reader-release
Overriding existing handler for signal 10. Set JSC_SIGNAL_FOR_GC if you want WebKit to use a different signal
read themes.toml
(WebKitWebProcess:1008787): Gdk-ERROR **: 07:43:53.512: 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 211 error_code 2 request_code 152 (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.)
```
Would love to have a fix as this has me dead in the water.