I was working in the editor at the same time and I was opening the mission into the game, starting the mission and then exiting it after a while. I tested the very beginning of the mission in the campaign and for this I needed a character from the previous mission, so this way I significantly shortened my time to start everything from beginning, and since the changes in the editor did not require restarting the game, I did it for over about an hour. At one point, the game crashed when selecting a character and I had to shut down everything one by one. When I started the Map editor, SAIL Editor had syntax colors changed and this cursor problems.