Crack King Tiger shooting HE at a Sherman 75 continuously???

[Maximus]

I was just playing a game where I had an enemy KT that was immobilized on a previous shot to continuously shoot HE at my advancing Sherman 75. The Sherman ended up surviving many HE hits and I ended up moving it to get a flank shot on the KT and it got in a killing shot just as the KT was rotating its turret toward the Sherman. Also the KT didn't shoot as often as it could have. At times I thought I had got in a "Gun Damaged" hit, but nonetheless, it continued to track my tanks but shooting HE instead of AP. Strangest behavior I have ever seen in a KT, especially a crack KT. If it had shot AP, my tanks would have surely been burning hulks long before they had a change to close within point blank range to get the flank shot.