I tried following along, and to be honest, I'm still not sure what your issue really is all about. Your explanations are not detailed enough to follow along and there is a lot of repetitions about "hatch keeps coming back" plus "AutoCAD is still hatching" which means nothing to anyone here judging solely by the 109 views so far.

Restart your MAC. Open any other DWG file, or even start a new DWG file, and try to replicate this issue while recording yourself in a video for all of us to follow along visually if the problem continues so we can see what you see.

if you don't know how to record yourself in a video, let us know. No more static screenshots please.

TIA