Bit of a bug. In the unit roster section of the city screen, units that are acting as military police have content faces next to them, which obscures the number indicating how many more times the unit can be upgraded. Perhaps moving this number to the lower-right of each unit would be a good idea? Personally, I think you don't need to see it at all in unit rosters, only in build queues. Dunno whether you can change that tho, since I don't mod. Otherwise - well done! Great mod.