apart from the usual game style, no, I am not suffering from lag, and I'm not sure if anyone else is suffering from this, but I can only spawn one hardcore boss monster at a time. I tried to spawn the skeletron prime, and it wouldn't let me. I have tried it on different worlds, only to lose the summoning item and him not spawn (I spawn him at night, it lets off the roar, but no signal as to him being spawned. A friend of mine is suffering from the same problem) I have fought the wall of flesh multiple times, so, stuck on any other ideas. little help?