Yes, it looks like a bug: Because you have your second Atlas Facility under construction, you are asked to complete it before building a research center, even though your first Atlas Facility is already complete. If you really want to start, I expect cancelling the construction would allow it! That said Atlas units are poor value for money at the moment, but it may improve with v2.0
Raise an issue with support, either using the Support tab at the top of this page or in-game with the right hand pullout -> cogwheel settings icon -> help and support -> report an issue.
Please post the response from support back here to let us know how you get on.