I have been having problems working with AI MoveTo and created a very basic version in the hopes of finding the problem:
As you may see, I have one single character with the default skeletal mesh and one call to AI MoveTo at the beginning of the game to move to a hardcoded location. This call resolves with on fail callback.
I have versions with navmeshbounds volume & random navigatiable points & different characters etc.. but they also fail and figured this simplified version better underlines what the problem may be.
This aside, is there a way to look at details on why on fail is triggered ?