Horse and zombie horse bug

I don't know what is going on, but I playerd on this version to test the new updates (which are so coooool! I like that coral is a plant and not a boring block :33 ) and i discovered a bug. All horses spawned from a horse spawn egg are white and all zombie horses spawned from a zombie horse spawn egg are invisible.

Proof video: https://www.youtube.com/watch?v=iuRDZpuRbSc&feature=youtu.be

Thank you, have a good day!