When you hold a chest in creative, it is a flat item rather than a 3D block model like the other blocks. Also, when you tap on both a single chest and a doule chest, the opening animation runs as if you opened the chest for the minimum amount of time.
Picture links (for now until i upload them properly):
Holding chest: http://i.imgur.com/fgoY8js.png
Single chest open: http://i.imgur.com/Y8Z05as.png
Double chest open: http://i.imgur.com/5AJLZU4.png
Simplifying this ticket to the most prominent of the multiple bugs posted here. It is much easier for us to deal with bug reports when they contain only one bug. Feel free to create new ticket(s) with additional bugs.