ORTUR LaserMaster with Lightburn 0.9.16

The program was working fine and I made several test to find the right
engraving settings. Then it started giving a blue dot but no engraving.
Everything was working as it should except there was no burning. I am brand new to laser operation and would appreciate any help.
Thank You

Greetings James

Could you get in touch at https://ortur.tech/support/ so we can follow up on the problem?