I've the same problem in Spain for some videos through the Facebook application.

For example this video:
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Is not rewarding (I don't know who is the provider).

Another video is not rewarding also:
Click image for larger version.  Name: WAdd.jpg  Views: 45  Size: 25.5 KB  ID: 47687

I think that the last one is from Supersonics (I have seen that in the source code): <script src=https://supersonicads-a.akamaihd.net/brandconnect/js/engagement.stat.70597daa.min.js></script><script>$(function()

Anyway, there are other videos from Supersonics that are rewarding correctly. In fact all the videos that when are launched appears the Supersonic logo are being always rewarded via Facebook, the other videos I have always problems.