Cardio training doesn't appear

Hi,

I created a Cario training in GC, but for some reason I cannot transfer it to my Fenix 5x Plus. I synchronized my Fenix several times, but everytime I try to open "My training" in activity "Cardio" the message "Download workouts from Garmin Connect.". More, I created an entry in the training calendar, but it doesn't appear neither.
What I can see: the icon of Cardio training in Garmin connect is different to the icon Cardio on Fenix.
Can somebody help me? Thanks.