I struggled with vcarve inlay. The male should have a start depth of .1". The reason is the make inlay slightly smaller in width than the female pocket with the start depth of .1". You may need to vary this with 30 Degree bit.
I made the female pocket .2" max depth. The male inlay should have same .2" max depth. If you start at top of material and .2" max depth the inlay will just barely insert in pocket.
See my post Vcarve Inlay Oak and Cherry