Cannot move after switching scenes?

If i go from my main menu to my game, it works fine, but if i go from a level to quitting back to main menu, and then back into a level, movement does not work unless i pause and unpause the game. HELP!

here's my script for the start button using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.SceneManagement;

public class StartButton : MonoBehaviour { public void StartGame() { SceneManager.LoadScene(1); }

}

I also have script for the continue button. using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.SceneManagement;

public class ContinueButton : MonoBehaviour { private int sceneToContinue;

 public void ContinueGame()
 {
     sceneToContinue = PlayerPrefs.GetInt("SavedScene");

     if (sceneToContinue != 0)
         SceneManager.LoadScene(sceneToContinue);
     else
         return;
 }

}