Can't load tracks into deck C&D with the load knobs on the DDJT1?

hi 2 you all,

After my update tot tractor 2.5.1 it seems that i can't load a track with the C&D knobs on the controller. Dragging a track with the mousse from playlist in to the screen works fine. 

Also i see that the leds on the controller channels C&D for sync & master won't hilight?

What can i do to solf this?

thx

Mr jive