Retirement tax questions

I did find one erroneous amount but even after correcting for that the amount TT says is allowable is almost equal to the total SE earnings. I looked at the Byzantine "Keough/SEP worksheet" and I don't see anything wrong with it. 

This wasn't like this last year; IIRC the calculation went smoothly from the point of the "Maximize" step forward. All the variables are pretty close to the same as before.