Joe, I didn't explain this very well - so here goes again. In a situation where clicking the "SET PRIMARY" does no achieve the desired results, go back to the "EDIT" page. Scroll down the right column, below the 'children' tab is a section "Edit Photo Settings" with a box to uncheck to remove a primary photo. Open this profile: [[Harnish-48|Jonas Harnish (1941-2005)]], in EDIT mode, right column, scroll down to "Edit Photo Settings". Click the box to remove as primary.
In "Images" I unclicked the box and clicked "Set Primary" about a dozen times. BUT, I go to "Edit" and I can make the primary go away.
Do you get the same results?