Summary: Slime blocks attached to sticky pistons STILL duplicate randomly. It appears to happen when the player moves 50 - 100 blocks from the piston in question. This is currently easily reproducible.
Steps to reproduce;
1. Build simple hopper timer, using redstone torch to actuate sticky piston.
2. Start the timer by placing blocks into the hoppers (I used 5 blocks).
3. Move about 100 blocks away, then return, and observe duplicated slime block.
This can be reproduced with a new world, and the above test, please see the screenshots attached. Please note this bug is NOT a duplicate - I've reported this bug before, and it was marked as a duplicate, then marked resolved.
It is STILL an active bug in the 1.9 released today. Please check it.
Attachments
Comments
migrated
migrated
If it's a problem that's been reported already, then it is a duplicate. Duplicates are marked as resolved and pointed to the issue report they are duplicating. Now, if that issue has been marked resolved and is still occurring for you, make a comment in that issue report stating as such instead of opening a new issue.
migrated
Sorry for my misunderstanding regarding the status of these issues. I will try to locate the correct issue, and place updates there.
migrated
Do not duplicate issues.