角色在 X 轴和 Z 轴上随机旋转，即使启用了刚体约束

Question

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UIElements;

class FirstPersonCamera : MonoBehaviour
{

    public float mouseSensitivity = 100f;

    public Transform playerTransform;
    public Transform weaponTransform;

    private float xRotation = 0;

    void Start()
    {
        UnityEngine.Cursor.lockState = CursorLockMode.Locked; //Hides the cursor and locks it to the center
    }

    void Update()
    {
        float mouseX = Input.GetAxis("Mouse X") * mouseSensitivity * Time.deltaTime;
        float mouseY = Input.GetAxis("Mouse Y") * mouseSensitivity * Time.deltaTime;

        xRotation -= mouseY;
        xRotation = Mathf.Clamp(xRotation, -90, 90);

        transform.localRotation = Quaternion.Euler(xRotation, 0, 0);
        weaponTransform.localRotation = Quaternion.Euler(xRotation, 0, 0);

        playerTransform.Rotate(new Vector3(0.0f, mouseX, 0.0f));

        //playerTransform.gameObject.GetComponent<Rigidbody>().MoveRotation(Quaternion.Euler(0.0f,mouseX,0.0f));

        if (Input.GetKeyDown(KeyCode.Escape))
        {
            UnityEngine.Cursor.lockState = CursorLockMode.None;
        }
    }
}

这就是我用于播放器外观（鼠标控制）的东西，并且这种情况一直在发生：

即使我锁定了刚体 X 和 Z 旋转。问题似乎主要出现在同时使用键盘控件和鼠标时。这也是 playerMove 代码：https://codeshare.io/wnzrYj。它不应该做任何旋转。

我试过删除 playerTransform.Rotate，问题似乎消失了。我也尝试过通过刚体旋转游戏对象，但这似乎根本没有旋转身体。