Thank you Shade!
Actually it is same situation in 1.13.2.
Isn't it classified as a bug?
In that situation:
Cow can't dead without a lava.
Therefore cow dead means burned by a lava.
So it has to be drop a STEAK not raw beef.
o, sorry, I didn't know that is already issued.
Thanks anyway. You are very kind. 🙂
Thank you, Mikael!