| Type: | Bug | ||
| Reporter: | [Helper] Jack McKalling | Assignee: | Unassigned |
| Resolution: | Unresolved | Votes: | 44 |
| Labels: | experimental_redstone_fixed, piston, rail, rails | ||
| Attachments: |
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| Issue Links: |
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| CHK: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Confirmation Status: | Confirmed | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Category: |
Minecart
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| Mojang Priority: | Normal | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Area: | Platform | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Description |
The BugPushing and pulling a minecart rail simultaneously with the block it's on will cause the rail to break once the extension/retraction has completed. This holds true for normal rails, powered rails, and detector rails. Note:
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| Comments |
| Comment by [Mod] Jiingy [ 21/Aug/24 ] |
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The rail breaking and leaving behind a 'ghost rail' still exists, but the directional randomness of the issue is fixed with the 24w33a redstone experiment: The lever 'closer' to the pistons will always be the one to result in a ghost rail being created/the rail breaking. I've added the 'experimental_redstone_fixed' label indicating that the randomness is fixed, however the behavior of MC-75716 still exists. |
| Comment by Brain81505 [ 05/Jul/23 ] |
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Can confirm in 1.20.1 |
| Comment by Brain81505 [ 11/Feb/23 ] |
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Can confirm in 23w06a |
| Comment by Brain81505 [ 01/Feb/23 ] |
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Can confirm in 23w05a |
| Comment by Brain81505 [ 25/Jan/23 ] |
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Can confirm in 1.19.3 and 23w04a |
| Comment by Wntiv Senyh [ 07/Jun/22 ] |
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This could be fixed by postponing the rail's check for a block beneath it till the next tick (ie in the code check for unsupported rails BEFORE performing piston pushes, this would delay rail check to the next tick) |
| Comment by esoij [ 05/Jun/22 ] |
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Can confirm in 1.19-rc2 |
| Comment by FX - PR0CESS [ 28/Jan/22 ] |
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So just to clarify what is actually happening here. It's not random or sometimes happens. All you need to create this bug is have the power source update the bottom piston before the top piston. It's that simple! |
| Comment by [Helper] Jack McKalling [ 03/Aug/20 ] |
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I've rotated and mirrored the exact same structure in all directions now, and the results of whether the rail breaks and leaves a ghost block (red) or behaves normally (green) is consistent and seems directional. I can't figure out exactly how or why, but this is what it does: |
| Comment by Conem [ 17/Jun/20 ] |
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Confirmed in 1.16-pre7. |
| Comment by Conem [ 15/Jun/20 ] |
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Confirmed in 1.16-pre6. |
| Comment by Conem [ 12/Jun/20 ] |
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Confirmed in 1.16-pre5. |
| Comment by Conem [ 10/Jun/20 ] |
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Confirmed in 1.16-pre3. |
| Comment by [Helper] Jack McKalling [ 13/May/19 ] |
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Confirmed for 1.14.1 |
| Comment by [Helper] Jack McKalling [ 09/May/19 ] |
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Confirmed for 1.14.1 pre-2 |
| Comment by [Helper] Jack McKalling [ 07/May/19 ] |
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Confirmed for 1.14.1 pre-1 |
| Comment by [Helper] Jack McKalling [ 23/Apr/19 ] |
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Confirmed for 1.14 |
| Comment by [Helper] Jack McKalling [ 18/Apr/19 ] |
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Confirmed for 1.14 pre-5 |
| Comment by [Helper] Jack McKalling [ 17/Apr/19 ] |
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Confirmed for 1.14 pre-4 |
| Comment by [Helper] Jack McKalling [ 16/Apr/19 ] |
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Confirmed for 1.14 pre-3 |
| Comment by [Helper] Jack McKalling [ 15/Apr/19 ] |
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Confirmed for 1.14 pre-2 |
| Comment by [Helper] Jack McKalling [ 10/Apr/19 ] |
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Confirmed for 1.14 pre-1 |
| Comment by [Helper] Jack McKalling [ 08/Apr/19 ] |
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Confirmed for 19w14b |
| Comment by [Helper] Jack McKalling [ 03/Apr/19 ] |
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Confirmed for 19w14a |
| Comment by [Helper] Jack McKalling [ 29/Mar/19 ] |
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Confirmed for 19w13b |
| Comment by [Helper] Jack McKalling [ 27/Mar/19 ] |
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Confirmed for 19w13a |
| Comment by [Helper] Jack McKalling [ 21/Mar/19 ] |
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Confirmed for 19w12b |
| Comment by [Helper] Jack McKalling [ 20/Mar/19 ] |
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Confirmed for 19w12a |
| Comment by [Helper] Jack McKalling [ 14/Mar/19 ] |
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Confirmed for 19w11b |
| Comment by [Helper] Jack McKalling [ 13/Mar/19 ] |
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Confirmed for 19w11a |
| Comment by [Helper] Jack McKalling [ 28/Feb/19 ] |
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Confirmed for 19w09a |
| Comment by [Helper] Jack McKalling [ 13/Feb/19 ] |
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Confirmed for 19w07a |
| Comment by [Helper] Jack McKalling [ 07/Feb/19 ] |
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Comfirmed for 19w06a |
| Comment by [Helper] Jack McKalling [ 31/Jan/19 ] |
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Confirmed for 19w04b and 19w05a |
| Comment by [Helper] Jack McKalling [ 24/Jan/19 ] |
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Comfirmed for 19w04a |
| Comment by [Helper] Jack McKalling [ 19/Jan/19 ] |
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Confirmed for 19w03c |
| Comment by [Helper] Jack McKalling [ 17/Jan/19 ] |
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Confirmed for 19w03b |
| Comment by [Helper] Jack McKalling [ 16/Jan/19 ] |
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Confirmed for 19w03a |
| Comment by [Helper] Jack McKalling [ 09/Jan/19 ] |
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Confirmed for 19w02a |
| Comment by [Helper] Jack McKalling [ 12/Dec/18 ] |
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Confirmed for 18w50a, as above |
| Comment by [Helper] Jack McKalling [ 05/Dec/18 ] |
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Confirmed for 18w49a, the above conclusions still apply |
| Comment by [Helper] Jack McKalling [ 03/Dec/18 ] |
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I think the problem is more complicated or incomplete from above observations. I tested the same configuration in four different mirrored orientations (more exist even!), and the problem doesn't happen consistently. Observe the piston orientations and each lever. Red blocks lead to dropped rails, green ones don't. |
| Comment by [Helper] Jack McKalling [ 03/Dec/18 ] |
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Thanks. I've summarized your and my findings in one hopefully more convenient screenshot. (as of screenshot, in 18w48b)
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| Comment by Fabian Röling [ 03/Dec/18 ] |
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Apparently the sharing setting wasn't correct before. Should be fixed now, everyone should be able to view the file. |
| Comment by Fabian Röling [ 03/Dec/18 ] |
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OBS isn't properly set up yet, so the file is too big for an attachment: https://drive.google.com/open?id=1BV3xRXw_iAclGNIPndg9hTU8eo0oz0i3 |
| Comment by [Helper] Jack McKalling [ 03/Dec/18 ] |
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Please show picture of what you're doing where it drops the rail, as I cannot reproduce. I've tried all orientations and positioning I could think of that would follow the rule "rail and the block it is attached to". The only way my rails drops is when I push the block below it but not the rail itself. |
| Comment by Fabian Röling [ 29/Nov/18 ] |
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It's different now (18w48a), but definitely not fixed: Pushing a rail and the block it's on sideways together (or a diagonal rail and the block it's leaned on) drops it, but the rail is still there visually (ghost block). Up/down movement seems to be completely fine. |
| Comment by [Helper] Jack McKalling [ 29/Nov/18 ] |
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Pushed both the rails plus the block that supports it, yes. |
| Comment by liach [ 29/Nov/18 ] |
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Did you push with the block it's on? |
| Comment by [Helper] Jack McKalling [ 29/Nov/18 ] |
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Does not appear to happen anymore in 18w48a. Might have been fixed earlier. |
| Comment by Kraif [ 19/Oct/18 ] |
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Confirmed for 1.13.2-pre2. |
| Comment by Kraif [ 22/Aug/18 ] |
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Confirmed for 1.13.1. |
| Comment by Kraif [ 15/Aug/18 ] |
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Confirmed for 18w33a. |
| Comment by Kraif [ 08/Aug/18 ] |
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Confirmed for 18w32a. |
| Comment by Kraif [ 01/Aug/18 ] |
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Confirmed for 18w31a. |
| Comment by Kraif [ 28/Jul/18 ] |
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Confirmed for 1.13 & 18w30b. |
| Comment by Fabian Röling [ 22/Jun/16 ] |
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Confirmed for 1.10.1. |
| Comment by Galaxy_2Alex [ 24/Oct/14 ] |
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Reopened, Thanks. |
| Comment by Ian [ 24/Oct/14 ] |
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Confirmed to still be an issue in 1.8.1pre3. |
| Comment by Ian [ 22/Jan/14 ] |
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Affects beta 14x03b. When retracting the rails, all are broken. When pushing the rails, all are broken, but the visual of the rail typically remains (you get the rail back but it looks like it is there; when you place a minecart on it, both the rail and the minecart disappear). |
| Comment by Michael Turner [ 15/Mar/13 ] |
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Confirmed in 1.5. |
| Comment by Michael Turner [ 27/Feb/13 ] |
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Confirmed in 13w09b. |
| Comment by Michael Turner [ 07/Feb/13 ] |
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Confirmed in 13w05b and 13w06a. |
| Comment by Michael Turner [ 25/Jan/13 ] |
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Confirmed in 13w04a. |
| Comment by Michael Turner [ 21/Jan/13 ] |
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Confirmed in 13w03a. Really want my train station to work again. |
| Comment by Ian [ 06/Dec/12 ] |
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If you put the rail and the block underneath it on an ABBA circuit, it works (push block first and then rail to extend, pull rail first then block to retract). I agree that it shouldn't be that way, and you should be able to push them both at the same time, but that is a currently working fix (used that for my toggleable destination train station). |