No Login with Facebook after domain aliasing turned on

Edit Subject

Hmm. Let me get one of our dev team to look into this. They might need a few additional details. Back at you when I know more.

Okay, we had a bit of a change to the system late last night which may have accounted for this, but I want to be sure. Do you still experience this?

It appears to have been solved. A little disconcerting that a late night change caused this - I would much rather you test this prior to release than rely on customers discovering it. I have no way of knowing when you make such changes and no desire to run a bunch of tests when you do.

It was a move to a new DNS service. This particular case affected a very, very small number of companies who had just signed up and changed their CNAME information. Very sorry that it could not be avoided.

Didn't want to sound so negative previously, overall I'm very happy with the service and have signed up for a full year. But it is extremely important to my business to have it work smoothly. Thanks for you help and prompt response.

Could this issue be happening again? Just finished setting up the paid account today. Facebook login worked before setting up domain alias. It doesn't work now.