Ok Directnic fixed my .htaccess from this…
SecFilterEngine Off
SecFilterScanPOST Off
to this…
SetEnv MODSEC_ENABLE=Off
SetEnvIfNoCase Content-Type “^multipart/form-data;” “MODSEC_NOPOSTBUFFERING=Do not buffer file uploads”
Now image/video/music upload no longer goes to a 404 page, now it just turns the window blank white. The plugin “Interactive Video Player” still returns a 404 error when adding into post.
I’m gonna research that now.