Why are you using an inside offset for the pocket? I specifically noted that the same geometry had to be used. Copy-paste/duplicate it.
You need to create a shape which has the same appearance when cut on the inside or the outside — we had a lengthy discussion about this a while back:
This is clearer if one uses a drawing program which will assign strokes/colours:
Imagine if we wanted to create a multi-colour inlay for a file such as:
