Algorithm doesn't like videos from pinterest ?

Hi,
I have noticed that when I take videos from pinterest to make a montage (on premiere pro), my views are really really really low (I don't even think it appears on FYP, only my current followers interact with it), but when I use from other websites I get no problem, and get a high visibility.
Could it be a thing ?
If so how can I bypass it ? I already tried compressing with handbrake, adding filters...