Tryiung to add root bone to mixamo charcter and add weight to hip and rewmove from root only I seem to have stick out points. How do I get rid of them? see pic please

[Sonic_Poloboy]

Ive tried to add a root bone to a mixamo character amy so I( can make sure the pivot stays with the charcter as miximo anomations soom to be moving ther pivot away following this video

How To Add Root Bone to Mixamo Characters Using the Skeletal Editor on Unreal Engine 5.4

And got as far as doing trhe adding weight up to 7.25

But when I accepted the wiehting I get these sticky out points. How do I get rid of them and push them in.

it there a bit of weight painign I missing please?