Unable connect with inner layers

Hello ,

i am designing 4-layer PCB , it is not routing the track on inner layers (inner2.cu and inner1.cu) but it is happening on (F.cu and B.cu)

settings done for 4-Layers :
Design Rules -> Layers Setup -> selected as C

USTOM and 4-Layers

you mean a free-router doesn’t use the InnerX.Cu layers or do you mean you can’t place tracks in InnerX.Cu layers?