I'm amazed at how quickly this was fixed. Having just come to GrapheneOS a few days ago, I suspected that this would take a few months to address as it seemed low priority, and was actually contemplating switching back to stock in the meantime. So thank you everyone.
Also, I and a few others posted here on the forums concerning this. If lbschenkel or anyone else had not posted on the GitHub, would it have been helpful if I posted it there as well as here? I do not know how to do a proper logcat, for instance.