We are using Bluebeam Revu for iPad which connects with Dropbox. It used to work just fine, but a few years ago Dropbox stopped showing the full file structure within the Bluebeam Revu for iPad app. I've been working with Bluebeam tech support off and on about this issue for this whole time, but they still can't figure out what the cause is. This does not happen with their other users. When in the Bluebeam Revu for iPad app, when we go to the cloud connections, where it connects with Dropbox, the Dropbox listing there only shows three folders and one loose PDF file. We have MANY, MANY more than that which aren't showing. For some reason, Dropbox will not sync the full file structure. It had worked fine from before October 2020, but after that it stopped syncing and showing the full file structure with Bluebeam Revu for iPad.