I am unable to view the files in a library when I click "Open in Explorer". I've tried on a range of different libraries. The documents library has one document that is 10 letters long, shows empty. The masterpage library that has the built-in documents shows empty. The style library has 28 documents that SharePoint placed in there, empty. The documents appear in SharePoint, they do not appear in explorer. This is happening with all users.
-I'm the SCA, so permissions should not be an issue
-The documents in libraries do not have more than 256 charaters
-There are no libraries with more than 100 documents.
What is the problem? I was also getting prompted to download onedrive. I tried that and unless I sync the folder nothing shows up, and the masterpage library does not appear for download.