Hi, my account is locked too. Used it to test some code modification on a nother pc. Does that mean i must register a nother account to do this in the future?
It's typically safer. There's a bug in the system that's not logging people out, which is typically ok if you're using Sandbox on the one machine but because you can't be logged in on 2 machines at the same time with the same account, that's why it's locking accounts. It's still being investigated and sorry for the inconvenience!