May be have you exceeded map tiles limit ?
This topo US in my 62
Oregon and Colorado Montana and 62s can handle mapsets with at least 4000map segments. There appears to be some evidence in the Garmin Colorado and Oregon Wiki from actual use that supports the 4000 number.
Basemap+preloaded map+user added map=max 4XXX (4096? 4k ?)
See:
[Only registered and activated users can see links. ]
[Only registered and activated users can see links. ]
Bookmarks