In case it helps, I have problems too. For months actually, on and off. I have been using the latest code for a while now. I suspect it is related to SmartThings platform issues with routines, not the smartapp code.
What happens for me is the profile change executes fine with good morning (profile 1 to 2) each morning, goodbye in the mornings (2 to 1), but I’m Back fails to change the profile when arriving back home (1 to 2), but oddly only sometimes, especially if one of us returns home in the middle of the day to late afternoon. The routines and mode changes seem to complete, but the routines I’m Back and Goodnight seem to under-report or delay notification details when viewing in the mobile app. I see a number of reports of routine issues these days so I assume that’s where the problem is.