Since the changes to the battle system I've noticed that if you equip a shield and use "Guard" and then return to passive mode the idle animation when standing still freezes. You still blink, but you do nothing else but stand there like a statue. The same can be said when entering active mode. You draw your weapon/shield and then stand there like a statue.

To recreate this glitch, equip a shield and then enter active mode. Use the "Guard" skill and then return to passive mode before you lower your shield. The end result is you put your equipment away but instead of the idle animation starting you just stand still. I haven't tested this on other races but it does it to Miqo'te. While this glitch is in effect you cannot visually raise your shield either. Instead it sets you into the animation doing so then reverts back to the battle stance taken when entering active mode.