[Edi]

The size display thing is really random if it goes out of whack (such as when you see enemy reports of your own armies), but when it works as it should, the variation if 50% to 200% of actual size, so there is a lot of scope for different reports of fairly small armies. 50 enemies can look like 25 or 100. When this thing bugs, it's rarely repeatable, but sending a turn when it occurs to IW could help.

The army movement stuff is strange. There should be at least one battle, in the province you move to if nowhere else. If you use something to back up your turns and you encounter this, please send the files to IW per the insturctions in the shortlist thread.