Uboot submerged out of the map

[Ktonos]

In one of my Pbem games I had the italian submarine in the south Atlantic. It was attacked by a couple of destroyers, each time submerging closer to the southern edge of the map. On the final submerge it vanished off map. When my turn came, I could see that it was 1 hex out of the map (there was a "visible" hex on the map edge depicting that the sub was just 1 hex below the map). I can't click on the sub, so I can't control it. Is this a known bug? Is there any way to get the sub back into my control?

[Hubert Cater]

This is not known and I will take a look and fix this for the next build. Unfortunately there won't be a way to retrieve that sub now that it is stuck "off" map. Apologies for this.

[Taxman66]

I ran into this myself in my PBEM game.
In my game I re-found the sub in a half hex at the top of the map after a dive.

[PvtBenjamin]

I have also had subs disappear (not dive) when attacked by Carriers. The first attack reduces the sub then its gone, seems to happen most when sub goes from 2 => 1. Have to relocate (in the same hex) and attack again.