Razer Blackshark V2 Pro Right Headphone Not Working in Wireless Mode

The title says it all. I have a set of Razer Blackshark V2 Pro headphones and recently started experiencing a strange issue. In wired mode (using the provided cable to connect to the headphone jack), the sound works well in both sides of the headset. No complaints. However, when used in wireless mode (plugging the dongle into the computer), I get no sound out of the right headphone at all. The left headphone and microphone work perfectly, as well as the other features. This remains true across devices and operating systems, as I have tried it both on PC and Linux on several different computers. I encountered this issue before, and it resolved with some debugging, but now that it has come back I'm completely stumped. I followed every recommendation I could find in Razer's debugging help, but to no avail (including updating the firmware of the headphones/dongle, reinstalling the system audio drivers, playing with settings in Razer Synapse, rebooting the device, plugging the dongle into different ports, messing with the balance between the headphones through system settings, switching to mono audio, and more). Given that it works with the wired connection, I know it's not a dead speaker or bad connection anywhere, so my hunch is that it's software. That being said, I'm stumped. If someone could help me figure this out I'd be very grateful-- other than this issue I like the headphones, it would stink to have to buy another pair due to this bug.