max file size issues and can't see all the files in my wp-content/uploads

I have an issue with max filesize on this wpmu site that I don't have on others. Seems a plugin is handling the files I can use with my main network site. The setting are fine for other sites but I need to be able to upload large files on the main site.
I have set the global setting to 128m I also set the limit in ispconfig to 128m for the site. I even set it in the .htaccess file in the root of the site. I have not hardended this machine with defender so those are all the pain points I know of. When I ftp to the /wp-content/uploads/12 folder I can upload a .mp4 file but it's not available to me. I also see the file I uploaded through the browser earlier in various sizes as created by wp.

I have checked my settings in the network global file upload size in the network settings, which by the way causes an http 500 error when I try to set them, and permissions from root on up on the webserver.......
I am at a loss...

Bradley