I have a Garmin 62S, and have several .img map files that I wish to use concurrently. Some of them are from Garmin, several from other sources, and some created by me.
I noticed that some of the .img files will only display on the map page of the GPS when loaded to the Garmin folder of the internal unit. When they are only loaded to the Garmin folder on my SD card, they do not display.
Other .img files on the SD card (only) display fine.
Any theories as to what is causing this behavior?