PointerEventTypes is not fired in touchscreen with a drag & drop


I have a problem on tablet mode (touchscreen) with my project:
In desktop mode i can drag and drop an element out of my canvas to it and i can get the position of my mouse drop because of PointerEventTypes. But in tablet mode, PointerEventTypes is not fired when the finger drag and drop out of canvas. the event is triggered when i drag and drop inside my canvas but impossible to get the position of my touchend event. I tried to simulate a click with jquery by the position of my touchend event but it doesn’t trigger the pointerEventTypes.
There is my code triggered by my drop action :

    this.subscriptions.cloneObject = this.interaction.dropAdd.subscribe((id: string) => {
        // window.addEventListener("touchend", (event) => {
        //     console.log(event)
        //     console.log("test ? ")
        //     console.log(event.changedTouches[0].clientX, event.changedTouches[0].clientY);
        //     $(document.elementFromPoint(event.changedTouches[0].clientX,event.changedTouches[0].clientY)).click();
        //  }, {once:true} )
        var pickResult = this.scene.pick(this.scene.pointerX, this.scene.pointerY);

        console.log(this.scene.pointerX, this.scene.pointerY)
        if (pickResult.hit && pickResult.pickedMesh.name === "ground") {

Adding @PolygonalSun. I think a repro in the Playground would help too.

i found a solution by calculating the position of my event touchend position minus the position of my canvas and applying the value to scene.pick