Not sure this is a long term problem. However, I can not see my armies (or my opponents armies for that matter) in the bl_gambols game. All I see are empty provinces with national flags.
If I click on individual provinces, I can see commanders highlighted off to the left, and I can give them commands. When I give them commands to move, the dialog under the commander indicates that he is going to move, but I don's see any movement arrows.
Hopefully, this resolves itself next turn.