advanced rendering for AutoCAD
I've had this problem for a while now.
During the process of mapping a decal to a surface, the middle mouse button pan doesn't work. Nor does shift and middle button orbit work, or selecting pan from the toolbar.
The only thing you can do is zoom in and out with the scroll wheel.
It used to work a while back so it may have been introduced with AutoCAD 2018 or 2019.