I'm glad to hear that I am not alone, I asked on Reddit as I wasn't getting any responses here and someone said something along the lines of what you've written.
I wonder how long it'll take the Dev's to sort this out. Its kind of a serious issue if players aren't being allowed to access a game they've purchased (considering most of the features advertised are for official servers.)
If this doesn't get fixed soon I will be looking to get a refund and quit the game over all. I can't stand to support a company who doesn't fix game breaking bugs. Ark was released in such a poor state, I hope that Atlas doesn't follow in those footsteps.
Anyway thanks for the headsup. I'll have to be patient and keep an eye out for a fix.