Creature legs raising up its back legs for no reason

I`m working on a more advanced method for making realistically behaving creatures that are animated by multiple aligned positions and when the creatures is put in a idle standing mode the back legs raise up for no reason and it does this nearly every time.

This is the part of the script that controls the standing state:

		for i,e in pairs(script.Parent.Body.Limbs.Legs.Pair1:GetChildren() and script.Parent.Body.Limbs.Legs.Pair2:GetChildren()) do
			for i,h in pairs(e.LimbHolder:GetChildren()) do
				if h.Name == "Leg1" or h.Name == "Leg2" then
					--local Part = h.Foot
					local raycastParams = RaycastParams.new()
					raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
					raycastParams.FilterDescendantsInstances = {script.Parent}
					local origin, direction = h.Foot.Position,h.Foot.Position - Vector3.new(0,100,0)
					local raycastResult = workspace:Raycast(origin, direction, raycastParams)
					if raycastResult ~= nil then
						if (h.Foot.Position - raycastResult.Position).Magnitude < h.Foot.Size.X + 3 then
							print("YEZZZ")
							e.LimbHolder.PullUp.PullUp.Position = Vector3.new(e.LimbHolder.Position.X,h.Foot.Position.Y + h.Parent.Info.HoldUpVal.Value,e.LimbHolder.Position.Z)
							h.Foot.FootPos.FootMove.Position = Vector3.new(h.Foot.Parent.PrimaryPart.Position.X,h.Foot.Position.Y,h.Foot.Parent.PrimaryPart.Position.Z) + Vector3.new(0,-2,0)
							--if h.Foot.FootPos.FootMove.MaxForce == 0 then
								h.Foot.FootPos.FootMove.MaxForce = 5000000
							--end
							e.LimbHolder.PullUp.PullUp.MaxForce = 5000000000
						else
							print("OFFF")
							h.Foot.FootPos.FootMove.MaxForce = 0
							e.LimbHolder.PullUp.PullUp.MaxForce = 0
						end
					else
						print("OFFF")
						h.Foot.FootPos.FootMove.MaxForce = 0
						e.LimbHolder.PullUp.PullUp.MaxForce = 0
					end
				end
			end
		end