@SlackHQ FYI, your “add file” button isn’t functioning on iPadOS. Went to the web app as a workaround and, upon sign-in, was force-redirected back to the native app. The native app with the broken feature. Had to uninstall in order to be allowed to use the web version 
Sorry about the trouble - you are running into a known bug that our team are working on a fix for. Once we get an update on this we'll let you know.
