Patchiness in my engraves - Falcon 10W new issue

Hi there,

This is a new issue. I’ve started using my Falcon 10W after maybe a month of not using, and now I’ve got inconsistencies in my engrave. It’s happened on multiple projects, always in a smiliar space on my material. I’m using lightburn and please see a video showcasing the issue.

Photos below.

It looks like the laser gets to that area and fires, but it’s less powerful. I’ve got it set to “constant power”.

It doesnt appear to be a cable issue and I’m on the newest firmware on both Lightroom and the Falcon 10W.

Any advice would be really appreciated. I’ve also posted in the Lightburn forums.