This was caused by unprotected drawing callbacks. From 2.91, we now require that all python callbacks used for drawing needs to be safeguarded by `GPU_bgl_end()` to end the state tracking override.
This was caused by unprotected drawing callbacks. From 2.91, we now require that all python callbacks used for drawing needs to be safeguarded by `GPU_bgl_end()` to end the state tracking override.