Blerpa

As I stated in the title I suddenly cannot type in the chat. YES, I've chat settings set to "Shown". I've tried infinite times to no avail: disconnected and tried again. Even shut down the whole launcher and tried again at least 10 times. Is there anything related to having migrated my Mojang account to Microsoft? Minecraft Java edition 1.17.1. Vanilla or Optifine HD, does not matter. Server name (set by a friend of mine) is Gidierrini. Quite an awful situation.