Since update images engraving solid block instead of detailed designs

Since I ran the update two days ago I can’t get my laser to engrave any designs correctly. I first thought I had bad files and reached out to designer but found it happening with old files I used before as well as files from other sources.

I engrave designs on hats. I do hand burning but use laser from the more substantial and detailed designs.

When I import a file into Lightburn the preview shows almost a completely black final product in all images modes except grayscale. So I went with grayscale but it still burned solid. I don’t know how to fix this! I have tried redownloading file and got same result. I turned everything off and started over with same result. I tried going back to old version and still getting same result. I made sure my laptop was up to date with all updates. i uninstalled lightburn and reinstalled. No change.

You will see different colors on the engraved part of the hat because I have used the same hat to check the different settings since it is already ruined.

I am using a Creality Falcon2 22w.
started at 6400 speed and 20% power (previous used setting)
I have tried lowering speed and lowering power and nothing is working.

Any advice/help is greatly appreciated!


We need to review your .lbrn project file. If you don’t want to share it publicly, please email us @ support@lightburnsoftware.com.

Grayscale is probably not the best choice for this image file.

If Shade According to Power is enabled in your preview window, it uses grayscale shading to indicate higher and lower power cut moves. This only works with the Grayscale Image Mode or Power Scaling.

Running a materials test is also not running properly. It is showing the same box for every setting. When I did this previously it showed correctly, letting me see the different shades for the different settings so I could choose what would work best. Why would it be doing this suddenly (since update).

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From the 2.0 docs:

Screenshot 2025-09-11 at 11.31.53 AM

What version of LightBurn were you previously using?
The material test looks the same in V1.6.00 and V1.7.08:

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You are right. I went back to my previous photo. It was the finished product that showed the different colors. I am going to try to do one of those now. I was using 1.7.08

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