I cannot tell you WHY but i can tell you mixing moving in any way forces you use for object almost never end up well
I don’t mean actual forces but i mean either is mixing platformer with physics
Or top down with platfromer
Or forces with physics
SO
Physics
Top down
Pathfinding
Platformer
Forces
Boids
GNERALLY you don’t want to mix them
You are lucky if you won’t get any bugs