Without using any custom ressource pack, the animation that shows up when your character is burning is missing its texture.
MC-57812
Missing Texture for the burning animation
Resolved
Duplicate
0
Silverthedragon
(Unassigned)
Unconfirmed
Minecraft 14w25a
Retrieved
This is a duplicate of MC-56852, which has already been marked as fixed. In the future, please search for your issue in the bug database before filing a bug, in order to avoid duplicating an existing issue.