For about 2 days I've had this issue where Gamemaker gets stuck "building" the project, making testing impossible. I've restarted the laptop, uninstalled/reinstalled, cleared the caches, and tried waiting (20 minutes of "building" amounted to nothing). I checked other threads too, and nothing helped me. This issue popped up as I was coding and affects all of my projects, even new ones. I checked whether the projects worked on my PC and sure enough, they did. (mostly) Everything else on Gamemaker works fine.