Material Import crashed/crashing AI - Problem Partially Found Below, Help With Issue & Fix Pls!

After a long day of uninstall, reinstall, cleaner tool, Adobe remote assistance and no fix later....Every time I go into 3D effects AI stops responding and crashes (works fine in older version).

I know the problem was an accidental mass upload of dowloaded substances while distracted, so I figure something somewhere is continuing to recognize "Your Materials" under Materials tab in 3D effects, even after everything, and maybe is trying to upload still or has a corrupted file (I have also deleted all downloaded materials as part of the attempted fix).  So to test my theory I went into program files and located the Material-Resources folder and deleted the files outside the Default Material Substances folder: material_icon_render.sbsar and missing_material.sbsar.  I relaunched AI and after doing so I was able to access 3D effects but no materials would appear, just continous "searching cirlces", also my "Your Materials" folder was still there as I had suspected...so in some manner (not crazy computer savvy) my thought is correct, I am just not entirely sure what exactly is causing it or how to fix this...

Please help!  All or any help would be so appreciated its been almost 24 hours and I am going crazy trying to fix this.