I imported a QR code vector file with a rectangle around it. I am unable to adjust the speed setting on the fill. If I fill the rectangle, I can adjust the speed. Any thoughts?
Welcome to the site 
I don’t know of any machines that don’t allow a speed setting, so it’s a new one on me.. maybe @gilaraujo or someone else from Lightburn has an idea.
What is that “Defau???” button next to the speed value?
Is the QR code as shown a vector or an image?
The layer settings show C00 as a Fill layer, but if the code was imported as an image, there will also be a C00 layer with the Image settings.
That this is more than slightly confusing goes without saying. 
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