Duplicate RowID

My app’s URL: https://flightcurrency.glideapp.io/

Got my friend to try my app. He keyed in one entry but two rows showed up in Glide Data having the same “unique” RowID!

Same thing as my other reported bug, I can’t see it in Google Sheets, and I can’t delete from Glide Data.

Same as what I reported here, it seems.