The GARMİN 64 SX device does not see Waypoints in Mapsource.

While working with the current 60 CSx model we use, we can take route points without any problem in mapsource and make the necessary measurements.

However, we bought a 64SX model GPS to renew our devices. But when we transmit mapsource with this GPS, we can only receive traces. Waypoints not found, gives an error / no waypoints. Since we cannot get waypoints, we cannot do anything with this device. We would like to try all kinds of methods before we return.

It led us to use Base Camp when we called for technical service. This program is not quite complicated and useful to us.

Thanks in advance for your help. (The first 3 pictures are the new 64SX routes when we transfer the routes to the PC, there is no route, the last picture 60SCx should normally be like this)