Videos(some) will not play from my Unraid share drive.

The problem:
-some videos(and other files) will not play or get recognized when on the Unraid shared drive:
-I wrote a python program that uses .glob() to scan the files, and it bombs out on a number of files.(.html, .mp4, .zip, .ipygp), saying it "cannot locate" these files
-I have thousands or more files, and this only happens to a few, maybe 1%
-In Windows, When I open up the file properties, the "security tab" is missing, other functioning files do have the security tab.
    
Solutions I have tried, and none have resolved the issue:
-In Windows changing the permissions from a higher level and propagating them down to these problem files, I get an error message 
-In Unraid: using "Docker Save New Perms" to restore ownership and permissions.
-In Unraid, I changed the security to "Public" for the shared drive.
-I have updated my network card drivers per this recomendation(https://forums.unraid.net/topic/75277-video-files-will-not-play/).  FYI: I have had other issues with dropping network in the past, but I don't think this is related.
    
    
Here's what's weird:
-If I copy these very same "corrupted" files to another drive, they perform as expected, perfectly, so they are likely not actually corrupt files.
-If I open in Windows "Movies & TV" program, they will run(not Potplayer, vlc, still bombing out my Python app)
    
Specs:
-Unraid 6.11.1
-Windows 10
-I am newish to Unraid, and Python
    
Any help is apprecieated, and let me know if any more info is needed.