I had a Twitch account migrated into Mojang. When I pressed F6, everything worked just fine. Then, I disabled my account so that I could create a new one. I tried to go to mojang.com to unbind my old Twitch account, but the unbind link was old. Please update the unbinding link or make it a button that immediately unbinds your Twitch account from your Mojang account. I need to migrate my new Twitch account into Minecraft!