角色“粘”在墙上。统一C#

不幸的是，我无法嵌入视频，但我会尝试描述它。

我正在 Unity 中制作游戏，好吧，看照片：

在这张照片中，我按住 A，角色粘在墙上，尽管他应该滑落。该怎么办？

青蛙对撞机照片：

对于块，我使用常用​​的 BoxCollider2D，对于 Frog PoligonCollider2D。

运动代码：

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

public class PlayerController : MonoBehaviour
{
    public float speed;
    public float JumpForce;
    private float MoveInput;

    private bool facingRight = true;
    private Rigidbody2D rb;

    private bool isGrounded;
    public Transform feetPos;
    public float CheckRadius;
    public LayerMask whatIsGround;

    private void Start()
    {
        rb = GetComponent<Rigidbody2D>();
    }

    private void FixedUpdate()
    {
        MoveInput = Input.GetAxis("Horizontal");
        rb.velocity = new Vector2(MoveInput * speed, rb.velocity.y);
        if (facingRight == false && MoveInput > 0)
        {
            Flip();
        }
        else if (facingRight == true && MoveInput < 0)
        {
            Flip();
        }
    }

    private void Update()
    {
        isGrounded = Physics2D.OverlapCircle(feetPos.position, CheckRadius, whatIsGround);

        if (isGrounded == true && Input.GetKeyDown(KeyCode.Space))
        {
            rb.velocity = Vector2.up * JumpForce;
        }
    }
    void Flip()
    {
        facingRight = !facingRight;
        Vector3 Scaler = transform.localScale;
        Scaler.x *= -1;
        transform.localScale = Scaler;
    }

}