I'm on epic games.
I click the "open from epic games" button in GTA. The rockstar launcher says that the game is running, then the status message says "quitting" and the option to open re-appears.
Actually, I just decided to get some new mods, but the only problem is GTA isn't opening. The weird thing is, I can see it in the task manager, but it isn't opening. It's not that the game crashes after opening, the game doesn't open at all.