Thanks for the assistance AC. To further your comment on folder structure I completed the following troubleshooting.
-removed the reefmaster AT5 and tested the bound AT5 (SAS Satellite imagery) alone. Success, the nautical chart data displayed.
-Removed the bound AT5 folder and copied a small RM project map to root. No Success.
-created a shaded relief folder moved files to folder, No Success.
-Created multiple preset RM project maps to root and shaded relief directory. No success.
-Created AT5 folder moved preset maps to this directory. no success.
-Created RM user map and copied to root, Shaded relief, and AT5 folder. No success.
-removed KML file and left Large AT5 file alone repeated. No Success.
Below is a screenshot of the chart categories.
Menu/chart options/view/categories
categories 1-4 are Reefmaster categories. the Nautical chart information is what I want to display. When RM files are on the SD card all other categories are hidden.
I have verified this on HDS7 Gen2, HDS7 touch, and HDS 5 Gen1. Also note these are the US version of the Lowrance unis, not the international version.
This is leading me to think the problem is somewhere in the layering of the RM map. Let me know your thoughts.