I think I've managed to fix this exact issue for some friends by setting up a .bat file to run the game.
Clicking the created bat file should "force" the jar to run.
Beezer12Washingbeard: If poo mechanics were implemented, mercury could cure constipation wounds magisticus: Most of us avoid making jokes like this because there is always a risk Loftar might think it's a good idea and we all have to re-design our villages for sewerage. -6/29/17