Vertical Ridges

Hi all!
Does anyone know what would cause these vertical ridges in the fill areas?
I have a xTool D1 Pro 20w
I have tried to fix it by looking around on this forum and checking the tightness of the belts. I’m clueless about what to try next.
I am using Lightburn V 1.4.01 on a Windows 10 PC
I’ve attached the picture and the LB file.
I used Borax but not sure if that would cause it?
Logo.lbrn2 (285.0 KB)

1 Like

pretty hard to see what is going on… any way you can get more light on that and send a better pic ?

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