Fenix 7X solar wasn't sync couch plan activity at all

I have a problem with my new Garmin 7X solar, when i create a new garmin couch plan for run in my case, i can complete all the info on the Connect app but when i sync with the device it shows an activity named "Battle royale game" and it seems to be hung with looping the sub options. In conclusion i cant sync the plan activity with the watch. After a sync with the watch the plan itself is changed on Garmin Connect with all the activity planned cleared. If i did the same configuration with my Forerunner 265 it works like a charm.
The watch is updated to the last firmware and i just reset it before write this post but the problema is always the same.
Can someone help me to resolve the issue ?
Thank you