Further investigation, I'm not sure if this helps (I'm no IOS developper)
I assume the IOS-App contains some code for a "File Provider" https://developer.apple.com/documentation/fileprovider reason for my assumption: I can see SYNC in my "Files" App as additional "directory".
Even now with IPadOs13, I can see SYNC in "Files App" and I can swipe between synced files - but I neither can synchronise files (selective sync), nor are all "open with" dialogs disabled, especially the "open with" for HTML files does not offer Safari or another browser instead it moves the file to the "File Provider" of another App.
I can easily swipe between synced images from Files-App
Maybe this helps an IOS programmer who has access to the source code and can adapt the SYNC-App
I would really appriciate if Resilio could implement the changed interface correctly as it was previously - maybe a simple recompile/rebuild helps?
Thanks, Martin