[MCPE-21192] Falling sand entities get broken when piston heads push them Created: 13/Apr/17  Updated: 15/Aug/18  Resolved: 15/Aug/18

Status: Resolved
Project: Minecraft (Bedrock codebase)
Component/s: None
Affects Version/s: 1.0.6.52, 1.1.0.55, 1.2.0.25, 1.2.0.31, 1.2.0.81
Fix Version/s: 1.5.3

Type: Bug
Reporter: Christopher Edwards
Resolution: Fixed Votes: 3
Labels: None

Attachments: File Falling Blocks Glitch.mcworld     PNG File Screen Shot 2017-04-13 at 4.54.44 PM.png     PNG File Screen Shot 2017-04-13 at 4.54.52 PM.png     PNG File Screen Shot 2017-04-13 at 4.54.57 PM.png     PNG File Screen Shot 2017-04-13 at 4.55.02 PM.png    
Issue Links:
Duplicate
is duplicated by MCPE-25620 sand turns into items Resolved
is duplicated by MCPE-25867 Sand or gravel breaks on top of exten... Resolved
Confirmation Status: Confirmed
Platform: Tablet - iOS - iPod Touch 6
CHK:
ADO: 29785

 Description   

I have found a sand and Gravel duplication glitch in Minecraft pocket edition 1.0.6 It utilises sand falling onto a piston I found this by trying to make a falling sand garage door for my horses I used this double piston extender here: (https://www.youtube.com/watch?v=DTQGnMP3BX8) screenshots (look at my hotbar) bellow of how I have done it I only had 5 pieces of sand when I started making my garage door now I can fill it and have 7 extra this only gives you 1 at a time though.



 Comments   
Comment by [Mojang] Mega_Spud (Jay Wells) [ 15/Aug/18 ]

Closing as fixed - there may be some situations where the sand will break when falling on a moving piston, but that has been described as by design/won't fix. However, in the test world and examples, pistons can push vertical columns of sand without them breaking.

Comment by Mark Aranzanso [ 04/Oct/17 ]

affects 1.2.2

Comment by Mark Aranzanso [ 27/Sep/17 ]

still affects 1.2.1.1

Comment by Mark Aranzanso [ 21/Sep/17 ]

affects 1.2.0.81

Comment by Mark Aranzanso [ 08/Sep/17 ]

affects 1.2 build 9

Comment by PHO [ 14/Jun/17 ]

Confirmed on 1.1 / iOS and attached a test world, but sand, gravel, or whatever no longer dupes on this version.
Instead they either turn into item entities or simply disappear.
Also noticed that the glitch only happens when gravity-affected blocks falls directly on top of moving piston heads. When they are indirectly pushed by pistons through some other blocks, nothing interesting happens.

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