The last texture of the block breaking textures is not being displayed, you only see 9 textures.
Linked issues
Comments 3
Yeah I noticed this when I was making my own breaking texture, I guess I just have to leave out the 10th texture...
If you'd like to see it fixed, vote on MC-35078.
I've noticed this for as long as I've played Minecraft (since 1.0) and I just figured that the 10th texture was there for either when the block breaks, or for blocks that take longer to break (Obsidian, for ex.). OR perhaps if you see the 10th texture, it crashes the game...or summons Herobrine...who knows?