I can't get my exported map to show my raster layers as they appear in the layout. Specifically, my layout includes four data frames, each with its own raster showing areas stippled with colored pixels, but the exported map makes it look as though much more of the area is colored. I'm using ArcMap 10.6 and have tried exporting in every format and at nearly ever setting (even ridiculously high dpi) but can't seem to achieve a WYSIWYG. C and D seem okay, but A and B (much more diffuse) renders very wrong and certainly doesn't accurately portray the data.