FI documents generated from RE-FX are not being summarized

The Fi documents generated from periodic posting in RE-FX are not being summarize, even thou the have the same customer, the same flow type and account determination.

I checked the corresponding customizing Item related and the seem to be right. The system seems to be skiping this.

I have 2 conditions in the RE contract that goes to the same flow type and account determination but the document is generated with the two separated line item.