Spindle Burying Bit at Start

Wondering if anyone has a solution to why my spindle will sometimes bury the bit straight down when I start a project. It has happened maybe six times or so in 165 jobs. I use the plate to probe XYZ. This last time that it happened I know for a fact that I probed all axis properly. Any help would greatly be appreciated. I don’t want to ruin a project because of it.

Edit: I also use top of work piece as my starting point.

Hey Nick, what kind of machine do you have (Elite?) Also do you use a tool setter?

Elite Journeyman and yes.

Have had the same problem about the same number of time.

Check to see if your job setup is for machine Zero or project surface Zero in the job size and position section.
Saw your edit.
Try the same file, then manually probe surface Z zero with a piece of paper. If you get the proper result the problem is the probe or probe settings

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Thats my same setup and I had a similar issue a couple times until I realized what I was doing wrong.
Wrong Sequence:
Home machine
Change bit
Probe Z zero
Start my program which prompted me to change tools which I would just ignore and click cycle start since I already changed tools
Machine sets Z offset by tool setter

The problem being that the Z zero was set using the offset of the original tool length when I homed and not the tool I actually probed the Z with since I changed tools prior to the tool change prompt. Not sure if this is your issue but figured I would throw it out there. I realized that I needed to actually make a tool database which helps me double check what tool the machine thinks I homed with so I know where I am starting.

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Do you home your machine after you set xyz? I believe that is recommended.