You need to adjust your spray patern width. too heavy of a concentation in the overlap will burnout color. Call tech support for proper settings in MMP.I am getting a different color print where the pretreat spray overlaps. Anyone else ever get anything like that? It does it over the whole image background.
You also need to check to see if you spray nozzle is clogged. this could cause an irregular spray pattern if this is a new issue.