Come on, Axure folks! This bug has existed since Axure 8 Beta. It’s been reported countless times with the simplest of repros, and here it still exists in Axure 9 Beta.
When you have text that wraps in a repeater, the row height is supposed to accommodate it. And indeed it does when the repeater is initialized. But any subsequent action on repeater causes it to ignore the wrapped text height and instead uses the widget heights in the row to determine the row height.
Here is a repro case using a filter, though the same thing happens with any repeater action. (Sort, Add Row, Set Items Per Page, etc.). I put a line at the top of the row so you can see what’s happening: