Instinc solar surf don't count waves...

Hi, I am from. Spain, Castellón. And bougth this model one month, seems to work fine but I had used today and a week ago for paddle supp surf sesión and it just take the GPS track but no waves info are shown. Is there any specific conditions you must configure o what happends?

I selected surf activities and took more that 10 waves, but the info are that I have run 0 waves. Wtf? 

Please help... Satellite was sincronice (I see the track) and GPS and glonnas mode was activated. 

I need support.