Sounds like you cross-posted the issue here:
https://discussions.scouting.org/t/double-listed-patrols/508681/7
There’s also a response in that thread:
https://discussions.scouting.org/t/double-listed-patrols/508681/8
Realistically, the existence of spurious patrols and even spurious patrol membership records in classic SB is a non-issue since it will be going away in the not-so-distant future. If the patrols also showed-up in SB+, that might be an issue, but should be fixable as noted in my response in the other thread.
It sounds like you started down the right path but got tripped up editing things on a small screen. I don’t see that issue myself, but maybe it’s because my mobile device is kinda large because I have big fingers. :^)
