I seem to be having the same issue, except my plugin was just installed on the site. It is Version 4.9.9.1 and when I go to the different pages to pull up the media, it takes a really long time to load, which makes it impractical to use as I cannot access the media files. I have tried deactivating, uninstalling, and re-installing, and nothing has worked. Also, I have the Pro version.
Any work around or options?