Phasing moonwalking bug

If I dispel freeze and use quartz flask to get phasing my character moves a little and then just gets the running animation and stays still and I can't do anything. This lasts around 2-5 sec after wich I'm able to move again but often I'm either dead or need to log out. Have had this happen in different maps and different monsters. Common factor is phasing(from flask not sure about other sources) and dispelling freeze. Freeze immune doesn't need to be in the quartz flask for this to happen, just need to use them at the same time.
Does not happen every time but at least weekly if not on daily bases. One unconfirmed factor might be elevations in the groud (stairs and such)
https://youtu.be/kmq0tCmCQa0

http://imgur.com/gallery/z8K7J Got this bug again at the end of tul breach and was able to get a /bug out of it without dying or fast logging out. Could not move or cast cyclone/flame dash. Had to relog at the end. Can upload a video of this one also if needed

Dug up some clips I got filmed about this bug after the first post and I got 2 more bug reference numbers 1 068 640 787 and 492 185 598. In the first one I got really stuck but survived thanks to breach ending but in the second one I got freed from the stuck by stun or knockback from a mob.