Adding a scene can fail in HEADLESS mode

[samme]

Version

• Phaser Version: 3.55.2

Description

In a headless game, if you add a scene after at least one scene manager update (I think), the scene never gets added.

Example Test Code

Here Add is printed but Hello is not.

class MyScene extends Phaser.Scene {
  create() {
    console.log("Hello");
  }
}

class BootScene extends Phaser.Scene {
  create() {
    this.time.delayedCall(100, () => {
      console.log("Add");

      this.scene.add("myScene", MyScene, true);
    });
  }
}

new Phaser.Game({
  type: Phaser.HEADLESS,
  scene: BootScene
});

Additional Information

The problem is that the headless scene manager never resets its isProcessing property.

[samme]

#5872

[photonstorm]

Thank you for submitting this issue. We have fixed this and the fix has been pushed to the master branch. It will be part of the next release. If you get time to build and test it for yourself we would appreciate that.