1) I have no idea how to fix this, it may involve redrawing the map or changing the terrain. My mod and the Deos Vult mod most likely have the same problem because we're using the same Big Map mod.

2) This is due to missing unit cards (the grey peasant is the default card). Adding the missing unit cards will fix this problem.

3) I don't know why this is happening but I think it's related to the large number of faction symbols I'm using.