I've been working on a 4X space game, and I have a clickable map that you can scroll around with GUI elements drawn on top via drawGUI events. I recently converted my buttons to use the tap gesture command, as I have an eye toward touch screen use in the future. However, the GUI buttons will not read the mouse tap. I have tested it a variety of ways. The buttons work fine when not drawn via GUI, and they also work fine when the viewport is disabled. Is there a way to fix this, or is this a really strange hole in Gamemaker? Am I missing something obvious?