Did you reload as the Soviets? Are the Soviets losing org/strength?
If battle indicates "not supplied" only means that at this very moment they are out of supplies. Doesn't mean that they are unsupplied 24/7. Maybe just enough supplies get through via transport planes or some unnoticed land connection. The DH map unfortunately has some weird province connections that you can't tell by looking at the map (like Königsberg to some Baltic province).
You could post a screenshot. That might help. Unfortunately I can't even get DH-WiF2 to start anymore (missing lightcarrier.txt something).
As I said, they are not supplied for weeks (at least 4) now and it's a "real" closed pocket. (The Soviets aren't supplied by planes. Has anyone ever seen the KI doing that?!)
In addition to that, the encircled troops loose strength and org (due to my attacks) but they dont loose org due to encirclement. Thats nonesense to me..
My question is, if someone hast tested the new 1.4 mod version with the 1.4. game version?