Bug description

If input_devices/pointing/emulate_touch_from_mouse is true. The game crashes when clicking anywhere inside a room and shows the following error message (thanks to @Whyshchuck for the image).

Steps to reproduce

1. Create a room with a walkable area.
2. Turn on the mentioned option in the Project Settings.
3. Run the game and click anywhere (even on a hotspot, prop or character).
4. The game will throw a Invalid get index 'button_index' (on base: 'InputEventScreenTouch'). message.

Expected vs observed behavior

Even with this option turned on, interactions should work as expected in the Editor.

Environment information (please complete):

• OS type and version: Windows 11
• Godot version: 4.2.1
• Plugin version or branch: Beta 3

Additional context

The game don't crash in exported builds of the game.