Just recently I'm being asked by the Mac App Store to log into a different account to update my apps. I've never had a second Apple ID and this computer has always belonged to me, meaning there's never been another account logged into this Mac. Screenshot of the message attached.
You have updates available for other accounts
To update this application, sign in to the account you used to purchase it.
I've tried signing out and logging back in, but to no avail. I had to remove Xcode and install it from scratch for it to work, but I don't want to do that with every app.
Any ideas? :(
It was a bug on the App Store, it all works flawlesly now. Thanks for your help.