I have 2 computers that I use, both are windows 10. When I put the game folder on a flash drive and move it from computer A to computer B, it works fine and I can open the file. When I go from B to A, the file doesn't open. I don't get any error messages, it just stays on the welcome page. I can still create new projects on computer A, I just can't do work on computer B and then put it on computer A. I've tried using a flash drive, dropbox, and emailing myself the project folder, but nothing worked. Both computers are using the same GMS runtime.