Thanks The users will be using BYO devices so they will have admin access and no way to stop them from installing the client. I thought there might be a setting on the server side that disables it
For what it's worth, I ran across a similar issue with external webdav storage (Box.com). It would not show folders with spaces. Easy fix in my case to just rename a few folders, but easy to miss on a long list of folders with subfolders if you didn't know the issue was there.