Cancel in updateable BAQ not working?

Does anyone know how to fix this? If I hit cancel on the UBAq while updating a row, this show’s up in the popup. It’s probably not that big of a deal, as this error doesn’t happen in the Udashboard, but it still seems like something that shouldn’t happen, so I would like to try and figure out what I am doing wrong.

Also, for some reason, that field will not populate with what’s already in the row like the text box will (the problem field is a user code drop down) and if I just hit ok without changing anything, it will change the field to blank or null (I’m not sure which, I haven’t dug in that far yet)