Now that's a weird one: My army (witch was a stack composed of my sovereign, 4 custom "light soliders" and 2 Ebenwhatever Wolves (the ones you get on a quest) has been splitted and teleported to another tile upon healing one unit with an item. Only the sovereign would remain on the original tile, while the rest of my army has been teleported somewhere else...
It happened twice out of tree times healing my unit in the same game after a battle; the first time the units wheren't teleported very far, so it wasn't much of annoyance, but the second time, where I had my complete army (sovereign + units in one stack) far out of my borders, the units where teleported back inside my borders, leaving my sovereign alone in hostile lands...
Each time, I proceeded like the folowing:
- Entering a battle with neutral monsters
- Won the battle, got one unit damaged
- Transfered one healing potion from my sovereign to the damaged unit
- healed the unit by clicking the potion
- selected back my sovereign in the unit list
- BAM! Splited.
Here is the debug file, along with my DXdiag: http://twilight.mahoro-net.org/~smog/Elemental_bug_report_20100424.zip
Smog.