I thought this summary sounded reasonable:

Yes, that’s the same mascot at the same parade hugging other black children. That would seem to confirm that 1) the mascot didn’t see the children asking for a hug, and 2) that the mascot was actually motioning to someone behind them. Regardless, there are other explanations, such as the idea that the mascot was simply done interacting with the crowd and wanted to go back to the center of the parade. What’s clear, though, is that this wasn’t some rabid racist mascot out snubbing black kids for fun.