Strange TableView problem when entering editing mode.

I'm having a problem when entering editing mode in a tableview. What happens is the cell data from the section below is being displayed on top of the last cell in the current section.
The narrower cell, with the plus sign on the left side, is briefly visible before (a copy of) the cell from below covers it up.
Has anyone else seen this behavior? I'm really stumped here.
More info, or how my table isn't standard: Each of the three sections is populated from a list. If the user has previously deleted one of the items from the section, only then is the plus sign shown. Otherwise, only the delete sign is shown. In other words, if there isn't anything to add, then the plus sign with the associated ...add a new X is not shown. This all works correctly. The counters work. The lists of previously deleted items are populated correctly.
What doesn't work is the last row of the second section being covered by a copy (at full width) of the first row from the third section. The first and third sections both look correct. phew, I hope this makes sense.
Here is what it looks like:
Sizes
- Size 1
- Size 2
+ ..add a new Size
Measurements
- Measurement 1
- Measurement 2
Note 1 << this is the problem row
Notes
- Note 1
- Note 2
+ ...add a new Note
Thanks for any help you can provide.
Ty

OK, after more digging I answered my own question.
The problem was the section order for added and deleting rows in setEditing. I was setting the indexPathForRow in section 2, then, 1, then 0. If I do the update in order 0, 1, then 2 it works fine in 2.0, 2.1, and 2.2.

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