A bug with the character sticking to the wall.

Unity Engine
1

Hello everyone, I made a controller responsible for the movement of the character. Movement is implemented using RigidBody. But there was such a problem: when I jump and hit the wall in the air, I kind of stick to it and don’t fall to the ground, I can even walk left or right on it. Can you tell me how to fix this.

Here is the code responsible for movement:

using UnityEngine;

public class FPSInput2 : MonoBehaviour
{
    public float speed = 6f;
    public float jumpForce = 5f; 

    Rigidbody rb;
    bool isGrounded;

    void Start()
    {
        rb = GetComponent<Rigidbody>();
        rb.freezeRotation = true;
    }

    void Update()
    {
    }

    private void FixedUpdate()
    {
        HandleMove();
        CheckGround();
        HandleJump();
    }

    void HandleMove()
    {
        float moveX = Input.GetAxisRaw("Horizontal");
        float moveZ = Input.GetAxisRaw("Vertical");

        Vector3 moveDirection = (transform.right * moveX + transform.forward * moveZ).normalized;
        Vector3 velocity = rb.linearVelocity;

        if (moveX != 0 || moveZ != 0)
        {
            velocity.x = moveDirection.x * speed;
            velocity.z = moveDirection.z * speed;
        }
        else
        {
            if (isGrounded)
            {
                velocity.x = Mathf.Lerp(velocity.x, 0, Time.deltaTime * speed * 0.5f);
                velocity.z = Mathf.Lerp(velocity.z, 0, Time.deltaTime * speed * 0.5f);
            }
        }

        rb.linearVelocity = velocity;
    }

    void HandleJump()
    {
        if (Input.GetAxis("Jump") > 0 && isGrounded)
        {
            rb.AddForce(Vector3.up * jumpForce, ForceMode.Impulse);
        }
    }

    void CheckGround()
    {
        isGrounded = Physics.Raycast(transform.position, Vector3.down, 1.1f);
    }
}