Here is a save right before the move. You should be able to replicate the issue from there.

Please let me know if you need anything else.

No. There was no air interdiction.

<r> I've run into this odd siutation. I'm running official patch 1.03. Its turn 2, 50th corps and its 2 divisions started in Memel. After capturing Tallinn I moved them by naval transport to Tallinn. All worked fine for the divisions but the corp seems to get stuck at sea. I repeated this moving ...