Black Saddled Pig, Error?

Thank you for your report!
We're actually already tracking this issue under MCPE-43247 so I've requested this report be resolved and linked as a duplicate.

If you would like to add a vote and any extra information to the main ticket it would be appreciated.

Please don't forget to use the search feature before submitting a bug to see if it has already been reported. The less time we spend linking duplicates means more time testing and confirming the bugs.

Quick Links:
📓 Issue Guidelines – 💬 Community Support Discord – 📧 Mojang Customer Support – 📖 Game Wiki

According to the notes from the linked ticket this is due to your texture pack.

The creator will need to update it.