So I just had my last life stripped from me by a ravenous zombie. D: But I was put in the MyM lobby. Being the natural system-tester I am, I went through the portal, and it took me to spawn. With zero lives left, I went back to my island, and started to work on catching another heart. Died again (stupid creeper holes), and went about the same process. I had -1 lives. Decided it wasn't kosher to keep all that tech progress, and reset my island. I have -1 lives still, and am on my new Home Sweet Home island. Challenges are where I left them on my flat platform island Not sure where to go from here, aside from just building again.
Okay, so, when you did my quests, my hearts didn't get the memo. Just FYI. Sitting on 253 right now, lol
