Mac version of Basecamp not adding waypoints to USERDATA file on SD card

Looks like the latest Mac version of BaseCamp (Version 4.8.13) doesn't update the USERDATA file on the GPSMap's SD card when waypoints are added. I noticed there's no change in the time stamp of the file when the waypoints are supposedly transferred to the file. The GPSMap doesn't see the additional waypoints, and when the SD card is re-read by BaseCamp, the added waypoints aren't there.

However, it will update the USERDATA file if a waypoint is deleted. And I did notice that the time stamp of the file changed when that was done.

Tried it with two different Macs with the same results.

When I did this with BaseCamp on a Windows system, the USERDATA file was properly updated with the new waypoints. So BaseCamp on Windows works as it should.

Also worth noting is that it works when I tried it with a Garmin Montana 600 handheld GPS. Waypoints get added when they're transferred to the device.

So it's not the GPSMap device. It's not a particular Mac. And it's not the waypoint data. It's definitely BaseCamp not updating the USERDATA file.

I'm running Mac OS 15.2 on an Apple M3 as well as an Apple M2 Ultra.

  • I tried this on my M4 Mac Mini 15.2 and a GPSMap 64s and it worked correctly.  The added waypoints transferred to the SD showed up on the device.  Which GPSMap are you using?  A friend of mine was mentioning waypoints not showing up on his GPSMAP 65 and he actually exchanged it for a different 65.  It had the issue but he checked the firmware and there was an update available.  After updating he no longer has the issue.  Although Garmin support for software, especially Basecamp, is non existent, it is probably the firmware on the device and not Basecamp.  There is probably ZERO chance of anything being fixed is Basecamp.  Terrible service Garmin!!!!!

  • I have a Garmin GPSmap 421. Garmin no longer supports it, unfortunately.

    At least I have a Windows machine available that can update the SD card. Too bad Macs aren't well supported since they're much more user-friendly.