This is extremely annoying, I very often get "Glancing blow" hits doing almost no damage with Sturmtiger. Its very hard to accurately hit targets with it and this bug ruins everything. Had it twice today, one landed on top of Churchill Gun Carrier very far away (almost top-down hit), another just 50 meters away from M3 Half-track, denying me a lot of kills. I wish I had videos, its so annoying to calculate a hit and get nothing.
Please post of your similar accounts.