Carving Depth not consistent

[RandallTemple]

X-Carve has started to not carve on part of the sign.

I have carved this sign in the past using the same file and it carved fine. I have surfaced my wasteboard and ran the material through the planner so I know that is not the issue.

[SethCNC]

Either this

Having depth issues with a '21-'23 X-Carve CNC? See the Simple Fix

And or this

Use this trick to FIX uneven carve depths on your CNC router