Well, thank goodness it isn't me going crazy.   I kept looking at the worksheet trying to understand why it wasn't disallowing the equity interest.   
I finally saw where the problem was, as its using the same amount for acquisition debt and average balance, but I can't even override the amount, and then get it to calculate.

They knew there was a problem with the worksheet, because yesterday it was showing as form not final.  When I updated today and the notice was gone, I figured they had fixed the issue.  Silly me!