Strangest thing. New project. Simplw keyboard entry setup with platform behavior. one player. standard 8 player moves, but using the arrow keys. ok. Game auto saves. Plus I also had saved the project. BUT! as I was playing the player movements checking them out, walk, run, jump change animation from walk to run animation - player would pop off screen. No player on screen. WOW! OK. save game. exit. reload recent project. OMG! no event sheet.Boom. Gone! not even in the save area was my project to be found. Hope this is not a bug. BUT! I surely do LOVE Construct 3. Thank you all for writing such a great engine.