Push Blueprint Actor and Assets

Hi ,
i implemented the PushableActor Blueprints inside my 2D-Sidescroller project as shown in the Video. But maybe i´ve missed a thing.
When interacting with a pushable Box and moving it i only stay in the Push-IDLE Position and my character shows no walking push-.Animation when pushing or pulling the box. I looked around and try to debug and i think the “speed” value doesn´t update when the character is in the “pushMode”.

Does anybody knows how to solve this issue ?

Thanks