The small cube inside the slime block isn't displayed in the inventory and when it's dropped on the ground.
Attached (slime.json) is a proposed fix by @unknown.
Linked issues
is duplicated by 2
Attachments
Comments 14

Confirmed in 1.8.3.
Confirmed for 15w43c.
Confirmed for 15w44a.
Original reporter is inactive, giving ticket to @unknown.

Can anyone re-open this issue? This is unfair. 😞

Yeah, It an easy fix. BUT Explanation??????

Confirmed to be fixed in 15w47a. Thanks to Grum for taking care of this one. It's the little things that make people happy, plus such fixes greatly help to make a release look more 'polished'.
TO MODS: This affects 1.14.4. Can you reopen it? Or should I create a new ticket?

Create a new ticket.
Please do not mark unreleased versions (anything starting with "Future Version") as affected. You DON'T KNOW if it will be a problem in the future!