I have noticed a few days ago that I can't edit my post on the forum, as these error text will pop out instead:
Error
Unexpected error: ActiveRecord::ReadonlyAttributeError.Details
ActiveRecord::ReadonlyAttributeError exception raised
app/controllers/forum_topics_controller.rb:69:in `update'
app/logical/rack_server_timing.rb:18:in `call'
So, is it some sort of a glitch?