rotation along the x axis stuck at 90 degrees

Help
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1

Godot Version

4.3 stable

Question

Hi, im trying to rotate a characterbody3D around the x axis based on user input but for some reason its occasionally maxing out at 90 degrees, whereas other times itll work perfectly fine??

this is the code handling the rotation

elif input_dir.y != 0:
		rotate_object_local(Vector3.LEFT, 5 * input_dir.y * delta)

this is some other code which i think may be affecting it but i dont know

func slope_align(xform):
	if !is_on_floor():
		return xform
		var before = xform
		xform.basis.y = Vector3.UP
		xform.basis.x = xform.basis.y.cross(xform.basis.z)
		xform.basis = xform.basis.orthonormalized()
		var result = before.interpolate_with(xform, 0.1)
		return result
	else:
		var normal = get_floor_normal()
		xform.basis.y = normal
		xform.basis.x = xform.basis.y.cross(xform.basis.z)
		xform.basis = xform.basis.orthonormalized()
		return xform
	return "woopsies"

sorry if my code looks awful lmao