Nostalrius Begins - Quality wow vanilla realm (1.12)

Sometimes when I loot mobs I get into the animation of kneeling down and grabbing the loot, but then I get back up. And I try multiple times until it shows the bag, and even then it dissapears. I have to adjust my character until it lets me loot sometimes. I dont know if this is only me or not.

Anytime my character bugs out with animations, I log out and get on another character for a couple of minutes then log out and return to my bugged character and it's typically fixed.