Well, I have generated battle (meeting engagement, Australia vs. Japan, June 1944) and I use one "pre-made" map (sorry I don't remember name of it) which has river (bit "S" shaped) from north to south. I noticed that if "beach" (or nearest hex from river) area is "height 30" and water is "height -3", I can't get my troops (mostly infantry) crossed that river
... I tried to move them into river but they didn't changed into rafts (as they usually do). Well, I'm not sure but are those values for beach and river reason for this? Is this bug or done by purpose?