I experience same issues too. It helps reloading it for a few minutes, but then it fails with "Failed to perform the action 'b' format requires -128 <= number <= 127" whenever I try to do.
I've seen some other intgrations have issues with websockets version after upgrade. Might be related?
I upgraded HA to HA Core 2024.11.2. The Toshiba AC integration stopped working.
The logs showed a series of errors, including:
Initial connection failed, trying to get new sas_token... Platform toshiba_ac does not generate unique IDs.
I've rolled back to HA Core 2024.11.1 and it's working again.