DOTween transform.DORotate() weird behaviour?

Using the tween engine DOTween , I'm trying to make a cube rotate 90 degrees.

My code looks like t$$anonymous$$s:

 using UnityEngine;
 using DG.Tweening;
 
 public class Cube : MonoBehaviour {
 
     public void Rotate()
     {
         gameObject.transform.DORotate(transform.eulerAngles + Quaternion.AngleAxis(90, Vector3.up).eulerAngles, 1);
     }
 }

Now when I go to test t$$anonymous$$s, it works fine, see t$$anonymous$$s gif

But when I want to modify the code so that it rotates on the x axis instead of the y axis : gameObject.transform.DORotate(transform.eulerAngles + Quaternion.AngleAxis(90, Vector3.right).eulerAngles, 1);

The rotation works fine for the first 2 manipulations, and then it reverses and gets stuck between only 2 position instead of going all the way back to its original orientation, see t$$anonymous$$s

What am i doing wrong?

Thanks