I'm very sorry to hear that, and you're the first person this is happening to. I don't use any special loader—only the standard ROM one, specifically for the sake of compatibility. Since almost everyone has their own fast-loading solution these days, the basic loader should be trouble-free. I'd guess it's some disk drive settings causing a collision with loader.
Viewing post in Crystian and the Lost Crystals comments
Yeah it is really strange , but i seem to have found the fix for it , i changed the drive rom to a 1571 instead of 1541 , now it works fine , i tried it on another computer with vice too , it just does not boot with a 1541 drive , strange. , the same behaviour goes for my C64 ultimate , changed it to 1571 and it works now. At least i can play it now haha :)