I have a 2020 Q90T connected to a pretty old A/V Reciever, a Yamaha RX-V620. I set it up over a year ago and have never had a single problem until yesterday. When I turned my TV on in the morning it told me the firmware had been updated to version 2303, and ever since then, no audio comes through the optical output. I have tried hard resets on both devices, as well as changing the optical cable out for a new one. The port still seems to be working, as when I plug the cable in, it searches for a device, then tells me it can't find one(The port on the receiver works when testing as well)

Anyone had anything similar happen, or any suggestions on what to try? I feel like I've looked at it from every possible angle but nothing seems to work.