Hi Randy. Hope you can help me with this related issue...
I created a Sharepoint list from Excel - notice the second column "pers_id"

Screendump from my PowerApp:

The column "field_1" in the top is from a collection made from my SP-list - the "pers_id" in the bottom is from inserting a quick table from the source itself.
I'm in the process of changing data source from DataVerse, and I would appreciate it, if I could keep my column names as they are.
Any ideas why this change occurs when I make a "ClearCollection"
Best regards / Kim