I've created a bug tracking page on Trello.
Fixes include:
[critical] Level Design - You are not actually being able to reverse move in level designer mode.
[minor] Game - Achievement icons would rarely loop causing the game to hang.
[minor] Level Design - You can't resume level design - it is not something that would be used much.
[minor] Level Design - It does not prompt you to save (if you need to) upon quitting.