[MCPE-16093] MCPE Crashes frequently when a minecart that is activating a detector rail and that dector rail are pushed by pistons at the same time Created: 06/Jul/16 Updated: 21/Oct/16 Resolved: 21/Oct/16 |
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| Status: | Resolved |
| Project: | Minecraft (Bedrock codebase) |
| Component/s: | None |
| Affects Version/s: | 0.15.1, 0.15.2, 0.15.90.2 |
| Fix Version/s: | 0.15.90.8 |
| Type: | Bug | ||
| Reporter: | inxomnyaa | ||
| Resolution: | Fixed | Votes: | 2 |
| Labels: | crash | ||
| Attachments: |
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| Confirmation Status: | Confirmed |
| Platform: | Windows |
| CHK: |
| Description |
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Whenever any minecart is on a detector rail (powering the rail) and some piston contraption causes both the minecart and the detector rail to be pushed (works fine on pull, crashes only on push) then MCPE is likely to crash. The crash does not happen every time, and with different builds, it happens more or less frequently (suggesting this bug has something to do with redstone tick order of operations). To reproduce
Note: The above build is not the most general case, but does crash with high frequency. Slime blocks are not required to reproduce this crash. You can also stack two pistons, use redstone to trigger them at the same time, place one block in front of the bottom piston, place the detector rail and minecart on that block, and activate the group of pistons. This is illustrated in the second screenshot showing the pistons and the rail pointing the same direction as the push. |
| Comments |
| Comment by Zeb [ 08/Oct/16 ] |
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Appears to be fixed in 0.15.90.8. |
| Comment by rplatham [ 06/Sep/16 ] |
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Reconfirmed on Samsung Galaxy S6 (SM-G920W8), Android 6.0.1 MCPE 0.15.90.2. |
| Comment by Muhammet Mehmet Emin Kartal [ 04/Sep/16 ] |
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It crashes game when button is pressed. |
| Comment by inxomnyaa [ 07/Jul/16 ] |
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Sorry, i did only test with slime blocks. |
| Comment by rplatham [ 07/Jul/16 ] |
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Confirmed on Samsung Galaxy S6 (SM-G920W8), Android 5.1.1 but you've got the build description all wrong. I'm updating the ticket now. Next time, be VERY specific about the build so we do not waste time trying to reproduce it. |
| Comment by inxomnyaa [ 07/Jul/16 ] |
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Same thing. But i realized that the minecart has to be pushed too, build it exactly like in the screenshot |
| Comment by inxomnyaa [ 07/Jul/16 ] |
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Removed unnessesary screenshots. Well, the bug only appears for me when the minecart is on the track. |
| Comment by rplatham [ 06/Jul/16 ] |
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Still confused here. I can't get the build in the screenshots to crash the game on:
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| Comment by rplatham [ 06/Jul/16 ] |
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There's already a ticket on the rail dup by piston push. |
| Comment by inxomnyaa [ 06/Jul/16 ] |
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Maybe you should test the behaviour yourself.. |
| Comment by inxomnyaa [ 06/Jul/16 ] |
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Hilarious, found an duplication bug also. |
| Comment by inxomnyaa [ 06/Jul/16 ] |
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Pushed the minecart off a bit just to show it |
| Comment by inxomnyaa [ 06/Jul/16 ] |
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Actually tried to simplify it, i'll attach a new screenshot |
| Comment by inxomnyaa [ 06/Jul/16 ] |
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Yea sure, i actually tried to create this machine https://www.youtube.com/watch?v=nYszbiYXMvM |
| Comment by rplatham [ 06/Jul/16 ] |
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Please post a screenshot of what you build before the crash or describe all the steps to build what you are describing. I was not able to reproduce your crash on my Samsung Galaxy S6 (SM-G920W8), Android 5.1.1 running MCPE 0.15.1. I tried, in a new creative flat world, both sticky and regular pistons pushing from various different directions with normal minecarts on unactivated activator rails. None of my configurations crashed the game. I may have missed something, or this may just affect Win10, but we need more specific info to reproduce. |