Thank you for your response, I was happy to hear that there will be a big update. I understand that making a game takes a lot of time and I don't know what your goals are, but it seems like it's one of those games a dev could work on forever. For the same reason it's very likely the best thing to do to upgrade the engine. Better now than after you worked really hard on it and had to scrap most of that work. Regarding the second odd behavior, I'd like to just toss an idea out there. What if there was a way to designate areas to be "unmodifiable" so that neither you or the bears can mistakenly destroy or place something there?