Roll a Ball Build failed

So i’ve followed everything ( thats what i think)
It works fine in the PlayMode(in the Editor), but when i make a Build and start it, i cant collect the Pickups.
(i use 5.50f3)

So pls help thy
schlauewurst

I have the same problem.

The game works in development but the build version does not react to collisions and ball rolls through cubes.

Win 7 32 bit. Unity 550f

Another curious thing - the date on the exe is always 24 Nov even though it was created on 22 Dec, Deleting it results in a new exe file with the same date.

Code:

using UnityEngine;

using UnityEngine.UI;

public class PlayerController : MonoBehaviour
{

public float speed;
public Text countText;
public Text winText;

private Rigidbody rb;
private int count;

void Start()
{
    rb = GetComponent<Rigidbody>();
    winText.text = "";
    count = 0;
    SetCountText();
}

void FixedUpdate()
{
    float moveHorizontal = Input.GetAxis("Horizontal");
    float moveVertical = Input.GetAxis("Vertical");

    Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);

    rb.AddForce(movement * speed);
}

void OnTriggerEnter(Collider other)
{
    if (other.gameObject.CompareTag("Pickup"))
    {
        other.gameObject.SetActive(false);
        count = count + 1;
        SetCountText();
        if (count>=8)
        {
            winText.text="You win!";
        }
    }
}

void SetCountText()
{
    countText.text = "Count: " + count.ToString();
}

}

The tags in unity update only after restarting the editor.

So to fix the problem save the scene, close unity, then open it back up and build again.