Layers not burning correctly

I am having an issue with layers burning correctly. I have 2 different layers with the same settings at the moment. 1 burns perfectly and 1 doesn’t burn hardly at all. The 1 that isn’t burning correctly is very light in places or there is no burn at all.
Both layers are words.
I have the most current update 1.7.03.
Any suggestions?
Should i reinstall lightburn? I have been a user for over 3 years.
Could it be the mother board of the laser?
I am using a Sculpfun 30 pro max.
Any ideas are appreciated.
Thanks

If one burns correctly i doubt it is the laser. Post file and someone can look at it.

What good would reinstall do? Nothing. Check again on cardboard instead of wood. Most wood has variance in moisture and density. show us a picture, please.