It's a known bug, and it's been known for a while (as in it was discovered in the PTS). Word is it might get fixed when the next patch hits. That could be anywhere from 2 weeks to a month a way. There's another thread about it here.
We are closing this discussion since there is already another thread open about UI errors when selling to the fence. This is a known issue with a fix in the next incremental patch. You can continue discussion in the thread linked below.