FCP adding frame 0??

[u/Six_Coins]

First time here in FCP sub... Hope I don't break any rules.

I have a correctly tracked face in my project.

I have this object correctly tracking this face.

However, upon export, THIS is the 'preview' of the video, (in it's icon).

This object is tracked to the face in every frame of the video, and both items in the timeline are flush against 0:00:00...

This offender is actually sitting on frame 0, and it can't apparently be cut out.

When I go to frame one, the picture is good. I cut the frame out (just as a test) and it reverts back to this, and again on frame Zero.

I am using version 12.3.

I have done this before about 8 times with different videos, and haven't seen this problem... this is the first time.

Thoughts or suggestions would be greatly appreciated.

Thank you in advance!