When sending out a job from CabMaster (Can be from any AllMasterSoftware product), sometimes parts of the machining will not appear after we have nested the job. This can happen because EzyNest has not been instructed what to do with the layer name, and if it does not appear in the list, it will not draw the layer, or toolpath the layer.
Attached is a document that goes into detail of showing how to activate the missing layers, and also below is a link to a video on YouTube.com