198 votes163 comments · MTG Arena Bugs & Product Suggestions » User Interface · Flag idea as inappropriate… · Admin →
An error occurred while saving the commentmushybananas#24261 commented
Getting the same error. Tried making a second account to log in to that and I can log into the new account fine. When I go to log in to my original account, I get the same error.
Update: after 15 mins or so it fixed itself.