Little problem with the outside contour

Hi. 

I have a problem with this file:

https://www.dropbox.com/scl/fi/a9kprats6pcmpwdodgxii/UV.cdr?rlkey=3q64hfmtiv1mcca6h5dpiswyp&dl=0

It prints the yellow outline contour, but I don't what this. 
Usually I use the right mouse button and set the outline contour colour to "nothing" (the crosshair symbol next the the other colours)

These are the yellow outlines which I want to get rid of:

This is how it looks when it's printed. Even when I set the outline to "nothing":

Any ideas?

Thanks!