I just upgraded one of my clients from one of the 4.0 versions to the most current version. In doing so it seems almost everything is working correctly, but for some reason the media folder is only showing PDFs and folders. All jpg images (which I believer there are about 350 on this site) are not showing. They also don't show on the add media selection within the blocks editor. However, on the dashboard, the files listed are all jpgs.
It looks like even when I do a fresh install of the zipped copy of Pulse it is having this issue. The last version that did not have this issue is 5.3.0. All versions since then are hiding any .jpg, .png, and .gif files when viewing the media page on the admin side.
Any advice in how to get these files showing again for my client? Thanks!