Setting “Use Acceleration for Paths” On solves the issue no need to edit the Animation Blueprint.
I’ve checked UE4.27 and having the same value set to ON is not required. the Ai moves the character just fine.
Must be some change for the 5.02 version as author of the tutorial on unreal documentation didn’t need that.
Unreal should have some comment area on the documentation sites. All this info is spread everywhere and not easy to find