I understand that rehost is a very serious decision. That's why I did not ask for a rehost when the bug first appeared.
But the current situation is, I cannot attack the only province that borders us (the main part that does not requires teleportation anyway). I do not know if he can attack from it. He is basically safe from my army. After several turns of preparation and my enire army stuck - for two turns in a row, it has become extremely frustrating.
Now a bug that makes your enemy immune from your attack? I personally consider it a serious enough bug that warrants some trouble. And I only ask for one retry to see if it will persist. If it does, so be it. I will blame UN peacekeepers.
I have seen games rolled back due to serious bugs, but if you guys thinks doing a rehost is too much trouble, I certainly can understand.