Omnifocus 2 repeatedly asking for sync server credentials

Hey guys. I’m a new Omnifocus user, and while I love the app, this one thing is driving me nuts.

No matter how many times I enter my credentials into the sync dialog, it keeps popping up. The dialog is the one that says “The Server ‘Omni Sync’ requires authentication”. I enter the correct credentials, and then sync even works, but it still keeps asking me.

I do have “Remember in Keychain” checked as well.

Please guys, what’s the solution?

I moved 5 posts to an existing topic: Sync preferences aren’t sticking [A: check keychain for dupes.]