When you attack a zombie they don't emit a damage sound. I am on a Kindle Fire HDX and playing on the recently released 0.12.1 from the Amazon Appstore.
MCPE-10449
Zombie Damge Sound Doesn't Occur
Resolved
Cannot Reproduce
1
(Unassigned)
Unconfirmed
Tablet - Android - Amazon Kindle Fire HD
0.12.1 Beta 13, 0.12.1
Retrieved
When this websites updates and puts 0.12.1 as a option please change this to 0.12.1 for no confusing 🙂