Mahle is smarter than the others, they make an embossed metal gasket for the plate. Notable ..that held up fine.
So you think it's possible that reusing intake bolts on this engine would allow the manifold to move more and dilaminate the gasket n drag it clocked n upward? I made a quick short on it but it wasn't upon initial Discovery it was after discovering it and pulling the piece of gasket off of the two ports but you can clearly see if you look hard enough this impressions of where it moved and left, basically made X's out of the intake ports...I've never seen it happen or have had it happen to me at least.
Insane, I've never seen that before & the bolts are torque to yield on magnums so they could be stretched beyond sealing capable but I don't know, what kind of adhesive did you use to glue the gaskets down ? I wonder if fuel and heat or oil or any combination of them turned that sealer back to liquid and the stretched bolts allowed it to move. I would try new bolts, the felpro gaskets I have are a non stick embossed metal .