Saw a thread about this and it was incorrectly locked saying that the rewards are not managed by SocialPoint. In that poster as well as my case, this is not about the 3rd party rewards but rather the rewards that SocialPoint give out as part of watching videos - things like cells, gold, food, etc. not the complete a task and get gems option.
The bug I am running into is that when watching the videos, about 25% of the time, the rewards aren't paid out, the dialog that sows "your reward. Thanks for watching. This is your reward:" never shows, the game just goes back to the map screen, no amount of waiting helps and you have to watch the video again. It's very frustrating as me as the user is keeping up my end of the deal but the game, Monster Legends, is not.
Please do not deflect to a 3rd party, it's an experience in your game and you need to own the experiences you provide your users regardless of whether you work with a 3rd party to provide them.