Laser not burning in the same position as set in Laserburn program

Hi there, I’m a newbie with the software.
I tried burning round candle holders. I designed a template with the specs of the circles and also space for “overburn”.
Even though I’ve set specific measurements, the final result did not come out as I’ve set it in the program.
Can you please assist me with possible mistakes I might have made?
I’ve attached a picture to show what I’ve done and what the final results looked like.



This one is homed from left front of template but burns to incorrect scale and off-center.

This one was homed in the center of the circle but burned to the incorrect scale.

This is what the setup in Lightburn looks like