PSR S770

[Keyboarder]

Hello all, I am looking for a hint for my problem.
I changed my KB from 710 to 770. I am using footpedal and volumepedal.
My setup for pedal is as following
  in 1 is the pedal connected with 2 settings via reg /fill self, ending1/
  in 2 is the volume pedal
When I push fill self everthing is ok, I can repeat how much I need.
When I push ending1 , the style finishes but resets the vol. assing to 2 and sets the artic.1 activ. Volumen pedal does not work, until I push again the fill self buttom.
With the 710 was no problem because volume assign is the first possible case.
If somebody has a idea how to make it ok, please let me know it.

Keyboarder