Facebook Ad: 10 second video view & 15 second video view

Hi, i noticed that the 10 & 15 seconds video view indicators results in 0.

Attached is a screen shot as well for easier referencing. As we can see the 3 seconds and 30 seconds indicator results in data whereas the 10 and 15 seconds indicators does not.

Can you please help?

Best Regards,

JIanwen