Merlijn Boogerd
- beyonix
- beyonix
- Europe/Stockholm
- Yes
- No
MC-9705
Scenario:
Two pistons are facing each other with two blocks of space separating them. A solid block is placed between them. Placing a repeater against the solid block and powering the repeater powers the block behind the solid block (from the perspective of the repeater).That power is transferredto both pistons, so they will both start pushing the block -> It disappears.Don't ask me what I expected to happen, I'm a noob that was simply experimenting. However, I certainly wasn't expecting this
. I'm not sure what would constitute correct behavior for this case either...
Link to world: https://www.dropbox.com/sh/lbyw0ww5ght5e16/6l0k15UUva/Minecraft%20Bugreports
Scenario:
Two pistons are facing each other with two blocks of space separating them. A solid block is placed between them. Placing a repeater against the solid block and powering the repeater powers the block behind the solid block (from the perspective of the repeater). Place redstone to transfer that power to both pistons, so they will both start pushing the block -> It disappears.Don't ask me what I expected to happen, I'm a noob that was simply experimenting. However, I certainly wasn't expecting this
Link to world: https://www.dropbox.com/sh/lbyw0ww5ght5e16/6l0k15UUva/Minecraft%20Bugreports
Scenario:
Two pistons are facing each other with two blocks of space separating them. A solid block is placed between them. Placing a repeater against the solid block and powering the repeater powers the block behind the solid block (from the perspective of the repeater). Place redstone to transfer that power to both pistons, so they will both start pushing the block -> It disappears.Don't ask me what I expected to happen, I'm a noob that was simply experimenting. However, I certainly wasn't expecting this
Link to world (go to 0,0,0): https://www.dropbox.com/sh/lbyw0ww5ght5e16/6l0k15UUva/Minecraft%20Bugreports
Scenario:
Two pistons are facing each other with two blocks of space separating them. A solid block is placed between them. Placing a repeater against the solid block and powering the repeater powers the block behind the solid block (from the perspective of the repeater). Place redstone to transfer that power to both pistons, so they will both start pushing the block -> It disappears.Don't ask me what I expected to happen, I'm a noob that was simply experimenting. However, I certainly wasn't expecting this
Link to world (go to 0,50,0): https://www.dropbox.com/sh/lbyw0ww5ght5e16/6l0k15UUva/Minecraft%20Bugreports
I have copied over our witchfarm to a small creative world with mcedit and luckily the bug is reproduced there. If you open it and spawn in bedrock, just follow the red wool up. Otherwise, there's 3 arrows pointing to the phenomenon and ways to reproduce my observations. I hope this helps more than my explanations
PhantomLight.zip
I believe there may be some issue with redstone lamps and their lighting being turned off.
Check the following tickets:
MC-10052: marked as duped of a ticket which I'm not sure it really duplicates, also, there are redstone lamps in the roof.MC-1993, not dealt with because of modded client, but also seems to be a normally non-light emitting block that emits light after the redstone lamp is turned off.I myself just found this issue when building a mob farm in our server (1.5.1). I have 5 redstone lamps, 3 of which I already included in a redstone circuit. Powering them and then unpowering them consistently leaves a block two blocks next to the redstone lamp (furthest away from the power source) as a lightsource, regardless of what block I place there. Replacing the block will sometimes reset the light level to normal, as will sometimes placing a torch. Also noteworthy, the two redstone lamps I haven't powered also consistently show this effect when the nearby (11 blocks away) redstone lamps are powered. Would you want me to make a separate ticket for this, or is my story enough to support this ticket?
The issue at our server (and what I believe to be the case in this ticket, from its short description) looks very similar to what is displayed in this short youtube movie:
http://www.youtube.com/watch?v=WJp-RS17URU
I have waded through pages of lighting bugs, but the ones above are the only ones I found and they are marked as a duplication of what now seem unrelated issues. Has anyone seen a ticket with a proper description of this individual issue? If not, I will see if I can make a simple scenario (and world download) to reproduce this bug and start a new ticket, or should we just continue in the comments here?
Can confirm this for 1.7.2, launcher 1.3.4. I seem to remember having tested a logoff without success before, but now that has worked five times in a row. In 1.7.2 at least this appears to be a client-only issue. The client shows the light and the aberrant block-light levels in F3. Relogging seems the most reliable way to fix it. I can also place blocks/light in the vicinity of what seems to be the light source, and this does often seems to be the cause of the light source disappearing, but it is far less consistent. It almost seems to be that multiple of such erroneous light sources can feed into each other and they all need to be blocked off before the phantom light completely disappears.
I have copied over our witchfarm to a small creative world where the bug is reproduced. If you happen to spawn in bedrock, I hope you'll see red wool that you can follow up without damaging anything. Otherwise, there's three red arrows pointing to the location of the phantom light and ways to reproduce my observations. I hope this will prove to be more helpful than my explanations!
Can we mark MC13003 as a dupe of this one? I can't adjust the affected versions there and it clearly affects 1.7.2 as well.
@Bob, your zombie spawner observation confirms also that this is a client-only issue, the server actually has the correct light levels. I have uploaded my witchfarm as a world download to the other ticket, but a more isolated case might ease finding the cause of the bug for the developers. I haven't succeeded in creating a simpler case, but it sounds like you might have. Could you by change attach a world download to this ticket?