Infill logic changing layers below?

[Ratalon 0]

TLDR; With any setting less than 100% CURA modifies the layers under some letters and generates holes for some reason.

 

Small holes and lettering added to the underside of where the lettering is actually located. 0-90% infill causes this

Same layer with 100%

 

Loaded a few different profiles, they all do the same thing. CURA 4.8

Other than splicing in the 100% infill gcode into the lower % gcode to make it "right" any ideas?

 

STL attached and located Do Not Dumb by welchomatic - Thingiverse

DoNotDumb.stl

[fvrmr 73]

Hi @Ratalon try changing the top skin expand distance to a higher value. 

Let me know if that works for you.