You’re not supposed to exceed 90 degrees with moment load on shells in static:
[…] the user applied a rotation or a moment to a node.[…] in static calculations, starting with version 2.8 this type of loading is handled by using mean rotation MPC’s […] the rotation in a mean rotation MPC should not exceed 90 degrees.
Perhaps create a moment using opposing *DLOADs on two surfaces at the tip of the strip. I’ve done a rolled strip like that before, but not sure if it was CCX shells or not.