People who play the Mortar role alot probarly found out already but i want it to say here because its getting annyoing.
The Bug: If you fire you mortar shells then somehow you Soldier detached from his firing position without you doing anything and there is always 1 round left. So you have to go in position again and adjust the distance and that just for one round. Because if you pick ammo from a ammo box that one round is gone. And this bug happens sometime after every ammo reload.
I used Mortars so far only on German/Soviet factions about the others im not sure.