Okay, I think I’m probably doing something very simple wrong because this keeps happening with every game I create.
So, the game runs just fine when I launch a preview on the GDevelop program. I uploaded my finished game to my web domain and tried to launch the game online (all files uploaded without issue after installing a File Manager). However, the game only shows a black screen. The same thing happened when I tried to view any of my games through the advanced preview Wi-Fi option on my tablet so I think it’s not a problem with the game files, but a a mistake I keep repeating in the development process.
Here’s the files for the game opening screen that I remade to check that the problem is consistent: My project2 - Google Drive
Edit: I was testing my GDevelop program to find possible other problems and the Windows 10 update has apparently messed up what I can and can’t do with the program as any attempt to create something other than an “empty game” gives me the " unable to create the game in the specified folder" error message. That could maybe be related. Launching the program as system manager doesn’t fix the problem.