Plants don't cause an update when the block beneath is broken/light level changed
If you are to place a sapling on dirt then a carpet block on top and destroy the dirt NOT the sapling (dirt under sapling), the carpet will float. This doesn't work with any other block that gets destroyed when below block is destroyed. ONLY PLANTS WILL WIELD THIS EFFECT (except cactus)! Nothing else works.
Linked Issues
is duplicated by14
MC-22874Light-based farm harvesting no longer works properly.DuplicateMC-23371Sand doesn't fall when the block holding up a plant, holding up sand, is broken.DuplicateMC-23871Floating Anvil (Actually Floating)DuplicateMC-26869Gravel doesn't fall unless blocks around it update.DuplicateMC-28589Floating sand with Lili padsDuplicateMC-32046Floating AnvilDuplicateMC-33261Wheat does not pop off in the darkDuplicateMC-36211Anvil bugDuplicateMC-41494Anti Physics BlocksDuplicateMC-44715Plants don't respond to darkDuplicateMC-45520Fire SoundDuplicateMC-47374Physics affected objects floating when placed on top of two block tall flowersDuplicateMC-48811in 1.7.4/1.7.2 sunflowers and bushes were added,If you place a sunflower or bush and put a block that will fall e.g sand gravel on top then remove the sun flower or bush the block will stay in the air and not moveDuplicateMC-65792Two-block-tall plants' bug.DuplicateAttachments15
Created Issue:
Floating carpet
If you are to place a sapling on dirt then a carpet block on top and destroy the dirt NOT the sapling (dirt under sapling), the carpet will float. This doesn't work with any other block that gets destroyed when below block is destroyed.
Attachments6
If you are to place a sapling on dirt then a carpet block on top and destroy the dirt NOT the sapling (dirt under sapling), the carpet will float. This doesn't work with any other block that gets destroyed when below block is destroyed. ONLY PLANTS WILL WIELD THIS EFFECT (except cactus)! Nothing else works.
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Floating carpetFloating carpet/Plants don't cause an update when the block beneath is broken
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MC-17093
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Floating carpet/Plants don't cause an update when the block beneath is broken
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![[Mod] CubeTheThird](../../../data/assets/gravatar/cubethethird.jpeg){kind=small}
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Plants don't cause an update when the block beneath is broken/light level changed
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![[Mojang] Grum (Erik Broes)](../../../data/assets/gravatar/grum.png){kind=small}
[Mojang] Grum (Erik Broes)is duplicated by
Minecraft_Setup (1).exe
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![[Mod] Torabi](../../../data/assets/gravatar/torabi.png){kind=small}
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Resolving as duplicate of MC-19886 because the cause is the same; namely that the plant doesn't cause a block update when it pops off.
Duplicate of MC-19886, please use the search function to see if your bug has already been submitted. Currently over 58% of tickets are being closed as duplicate.
Works as intended? Please tell me you at least checked the video... The crops are not causing a block update AT ALL when they pop off (unless you punch them), which means sand, gravel, anvils, or carpets placed on top of the crop will be left floating when the crop 'pops'. The dirt can then be removed to create floating blocks anywhere you like. Now that I look for that bug, I see it's posted and confirmed already MC-19886 but that is just a side effect of the broken crop behavior.
It is at least an exploit. I don't think you're supposed to have such a wheat farm. Yes, it might be MC-19886 again, but the situation you described it with, but I think this kind of wheat farm is not supposed to be working.
Duplicate of MC-19886 - If you have not , please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.
Duplicate of Unresolved
MC-19886
If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.
Duplicate of Unresolved
MC-19886
If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.
The bug I reported is not the same one. MC-19886 is « Plants don't cause an update when the block beneath is broken/light level changed ».
Mine is about plants not being updated by placing blocks around them and changing light level.
Your issue has already been reported. However, all these are duplicates of MC-19886.
Duplicate of MC-19886. This issue has already been listed as fixed for a future version.
Could a moderator reopen this issue please ? Or should I make a new post ?
Since MC-19886 was fixed in 14w06b and this bug is still here, it was wrongly considered as a duplicate.
Since MC-19886 has been fixed today and this bug is still occuring, I think you've wrongly considered this one as a duplicate.
I'm glad you reported it (again) 
I made a post a while ago about this bug, but it was wrongly considered as a duplicate of MC-19886.
Fixed in 14w06b. See MC-19886
Confirmed.
Also happens with tall grass.
Works with all blocks which drop if the underlying block is destroyed and as long as no block update besides the carpet happens.
I've gone and tested more stuff and it appears only plants do this to the carpet, except cactus. Nothing else will wield this same effect.
It also works if the bottom carpet is destroyed by liquid but if the liquid is removed from where the bottom carpet was, the carpets will fall
that's because carpet floats on water.
Confirmed in 1.6.2
Also happens when the plants pop off from not enough light (
MC-22874) or when a piston shifts the floor.New plants create the same effect.
Not fixed in 1.7.4
It's pretty annoying for my wheat farm based on light.
Affects 14w02b.
Affects 14w04a.
Thank you Grum
Edit : actually not fixed at all in 14w06a
I'll attach some screenshots
Mmm looking into it. Maybe some issues with the double-plants. I did test it and it did work .. gah!
Great
Will it fix in the same time the problem of seeds not uprooting each other when updated, when lacking of light ?
Good! It's fixed! Good job! Also, why is your avatar the right way around, Grum?
It's not, but after some time your brain adjusted. (Look it up, it really happens)
Confirmed fixed. If you think this bug still exists, see
MC-31038.Also take a look at
MC-48062This issue or the issue
MC-37924should be reopened, as placing Sand on top of a Sunflower, then breaking the sunflower still exists in 16w20a.This issue is still fixed in 16w20a. That other issue was incorrectly resolved as a duplicate of this one, but the issue it truly duplicates is still a problem in 16w20a.