When you spawn an Minecart with an fallingsandenity above an commandblock, the commandblock disappear! You can't walk trough it and it will glitch when you try to jump on it or walk trough it! You can interact with other blocks trough the hidden commandblock. When you place an block at the location of the hidden commandblock, the commandblock will come back but the command in it got removed! Here is an video I made about this bug: http://youtu.be/y9pRr9ziN2c
This is the command that I put in the commandblock: /summon Minecart ~ ~ ~ {Riding:{id:FallingSand,Time:1,TileID:137}}
Comments 4
Your Java version is out of date! Please update your Java to the latest version (1.7.0_65): http://www.java.com/en/download/.
When using a 32-bit browser on a 64-bit operating system the automatic version detection will only show the 32-bit version of Java, the 64-bit version needs to be downloaded manually: http://www.java.com/en/download/manual.jsp.
Please report if the issue persists with the latest Java version as well as the current Minecraft snapshot 14w30c or later.
Nevermind.