Multi color painting fill

Hi

I’m having trouble printing a model with a logo. the model is printet laying on the side.

This is a screnshot, in prepare mode, of the area of the model that prints wrong.
prepare

This is the same area in preview mode - and how the model prints.
preview

I have tried rotating the model and changing layer height, this sometimes makes a difference but does not remove the problem. Any help would be appreciated

Klitgaard