>>13407830I had a similar problem a couple of months ago because my autism demanded me to switch from Authy (proprietary closed source no local backup or database migration options 2FA) to Aegis (open source with local backup and all the database import/export one may need) and since i moved all my accounts from Authy to Aegis i decided to delete my authy account and my 2FA stopped working (unable to verify token yada yada)
The problem: Twitch force you into Authy even if you are using a different 2FA provider/app.
Cancelling my request of authy account deletion (had literally 72 hours left before account lost forever) did the trick and Twitch immediatly recognized my 2FA token because it could found again "the authy twitch was linked".
If you are in the same situation i was i hope you still can recover that authy account.