TwoTrees laser printing lines instead of image

Hi! I’m not new to lasers, but a little new to Lightburn.
I’ve been using it without issue with my TTS 10 printer for a while, but after a reinstall I’ve found that my machine is giving me long, repeated lines in place of my image. It isn’t a line interval issue, I know that much, and my image is the right size. Please help?

Below is an image with three attempts, the lines darkening with each attempt because I slowed my laser speed.

What happens if you burn a square with Cut setting set to Line mode?

Ill try that when I get home and get you some more information.

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