We figured out that it only happens after naval combats. If you bypass all phasing naval combats it doesn't happen. Here is save before naval combats for phasing side.
EDIT: It seems that it happens only after we execute the naval combat in CSV where the cp & TRS in 0 box were sunk leaving a supply void in that hex - somehow this is affecting Soviet and Chinese land moves in asia..........zoinks
Can this be fixed? We can go back and stick another TRS out in CSV 2 box to keep this from happening but what happens if CW is legitimately knocked out of CSV? We can't continue the game?
EDIT2: I went back to end of naval moves and stuck a TRS into CSV 2 box to prevent the problem of no supply through CSV but now when I end naval moves game pops up a box saying partisan belonging to CW was destroyed because it exceeds foreign troop commitment level - this is before phasing naval combat box pops up - strange time for this to happen. And the partisan in Poland disappears!!