Got a strange bug here: my AI enemy tried to send units from one province to another and they got stuck at the border between provinces. There's three separate stacks with the bug, each one resetting to a 20-second ETA each time they "reach" the border.

An update, they've been there for ~5 hours so far. I've since taken the provinces on both sides of the border, no change. I also attacked them from range, no change. I'm not exactly complaining about the easy kills but figured I'd add some info for the folks looking into this

This is the border between Phondu and Jagbung in eastern Tibet. Map is 1939 HWW.