Moving an object uphill in my RTS

So I have been having this issue where I try to move an object up after right clicking and building a path up the hill. The object instead of moving up the hill decides to just get stuck on the hill and just sit there. I have tried using FixedUpdate with rigidbody.MovePosition, Vector3.MoveTowards, I’ve tried just doing it the old fashioned linear algebra way and no matter what I try it just gets stuck. I should also mention I’ve tried all of these inside of FixedUpdate and regular Update neither fixed the issue. So if anyone has any solutions I’m all ears.

Thank you,
GameDevBrian

Before I get too far into this, I need some more info. Can you supply the movement script or parts of it for me to inspect? If not, are you moving this object with a rigidbody or a collider? Does it move at all? If it moves, does it get stuck in the same spot? Could you use an animation and then set the transform of the object to the location of where its headed? Keep me posted ill try my best to help out.