I can only really assume at this point that she doesn't like something about the nest. This doesn't mean the colony won't like it in the future, but queens can be pretty picky sometimes. I would recommend taping a test tube setup to that side, near the entrance, and seeing if she likes that. I typically let my colonies begin inside test tubes, and allow them to move into the main formicarium whenever they are ready.
Edited by Batspiderfish, June 24 2016 - 11:40 AM.
If you've enjoyed using my expertise and identifications, please do not create undue ecological risk by releasing your ants. The environment which we keep our pet insects is alien and oftentimes unsanitary, so ensure that wild populations stay safe by giving your ants the best care you can manage for the rest of their lives, as we must do with any other pet.
Exotic ants are for those who think that vibrant diversity is something you need to pay money to see. It is illegal to transport live ants across state lines.
----
Black lives still matter.