I just started a new Philip campaign in B10 and noticed a little bug. 2-3 times while I was zoomed out on board-game map I saw stacks of enemy units within my territory but once I zoomed out to investigate there was nothing there. Once I unpaused the game the stacks disappeared after few seconds. I'll try and save game if this should happen again.

Probably the placeholder functionality for where the enemy was moving. Cleaned up by a AI course change or removal from the interface as an "enemy" unit.

Erik

Ive had the exact same problem several times too.