Apple is forcing Dropbox to cripple itself because they now have to use Apple's own cloud file sync API which is hot garbage. I don't know if this is the cause

Apple is forcing Dropbox to cripple itself because they now have to use Apple's own cloud file sync API which is hot garbage. I don't know if this is the cause of your iPad issue, but Dropbox on MacOS is about to get a whole lot shittier.