I just figured at the same as elemans mentioned! Make sure that the minimum iOS target version of the Intent Handler Target as well as your main project target match. I set both now to 14.0 and suddenly it works like a charm on my physical device too. Got it thanks to this thread: https://developer.apple.com/forums/thread/655245

Hey Jauzee, I am facing exactly the same issue. Fun fact: It's working in the simulator! For me it's only not working on a physical device! Did you manage to find the root cause? Regards Pascal