What I expected to happen. When you place a Redstone torch so it connects to the side of a block, it will stay connected even if I leave the chunk the blocks is in but keep the chunk the torch is in.
What happens is the redstone torch drops itself as an item as If i broke the block it was connected to.
To reproduce: Find a chunk boundry and place a block that a redstone torch can be placed on the side of on 1 side ofthe boundry, place the torch on the other side of the boundary so it connect to the other block but is in a different chunk. Fly away some distance so that both chunks become unloaded. Walk back to the place where you had the torch. You will see that the torch has dropped itself as an Item.
Update by @unknown:
Also affects:
Lever
Sign
Torches
Update by @unknown:
There are steps to reproduce this in MCPE-17271.
Moderator note by @unknown:
Please limit comments to only new information regarding the issue.
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@unknown confirmed this still a problem in build 5.

Confirmed on 0.13.0 too

confirmed for 0.13.1

I've seen this several times in 0.14.0. Not sure about 0.14.1.

Relates to MCPE-14113

Can not reproduce for 0.142

If this issue still affects 0.14.3 please respond to this.

Reopened as MCPE-14469 states this also happens in 0.14.3.

Can Confirm for 0.14.3 - iPod Touch 6th Generation

Still happens on MCPE 0.15.0 - iPod Touch 6th Generation - iOS 9.3.2
Affects 0.15.6 according to MCPE-16525.

Reopened because this one has been marked as "Fixed in Future Release" by @unknown on 2016-08-15 but still not fixed.
Please respond if this still occurs in the latest update.

Steps to reproduce in 1.1.0.1:
Set chunk distance to 5 chunks (4 may work but subtract 1 from each chunk distance listed here)
Apply this chunk boundry showing resource pack to aid in finding chunk boundaries.
Load up a new super flat world.
Face west(based on 1.1.0.1 sun rising in east) and go to the nearest red line.
Place a wall of solid blocks from one blue line to the next along the red line so that the side of tje block that faces east is lit up in red.
I recommend building this wall up untill the top of the top solid block hits a green highlight.
Now cover the wall in torches, leave no blank spots for maximum chance of reproducing the bug.
Set up some pistons on rapid clocks so that they cause block updates by the torches.
Now turn around and cross 4 red lines, not counting the one with the torches on it. after crossing the 4th line go up to the 5th one and stand on it so that you are still in the chunk closest to the wall but less than a block away from the next chunk.
Leave the world and return.
Go check on the wall, there is a chance the torches fell and bug confirmed. If they didn't, repeat, it has a success rate of about 50%.

I have checked and Dr Awesome is correct. My item frames were at a chunk edge. I moved the frames and they no longer fall off the wall. iOS 10 version latest version.
Okay, I can confirm this is still happening.
Attached a screenshot;
-A torch and a sign fallen as soon as the world started loading in. Most likely the blocks they were attached to were on a chunk border, and weren't loaded in fast enough to keep them on the wall.
[media]

It did happen before 1.1 - all the stuff falling off the walls but I am getting a little fed up with villagers magically walking through walls!

Can also confirm this is happening in 1.1.0.55.

Can reproduce on 1.1.0.55.

Please fix this bug because this annoys redstone engineers and builders a lot. One way to fix it is making the blocks mentioned above only drop as an item when a entity (when it displays the breaking particle) breaks the blocks those blocks are attached to. Otherwise, the blocks above need to wait 1 second without attaching a block to drop as an item. This solution prevents the bug because chunks loads take less than 1 second normally, and it still makes sure those blocks act what they should be acting.

This is a very annoying bug. I had signs next to all my chests and every other time I log back in to realms, half of the signs in the room fall off. After replacing them numerous times I switched item frames, but it still happens with them too.

This happened to me in Win 10 Edition after journeying quite a ways away. I lost my largest map wall – frames and maps – when they despawned before I discovered it. However, I also noticed my clock in an adjacent chunk, which had the corrupted texture from MCPE-22977, was normal again after being messed up for several IRL days. You may want to mark these two reports as related.

Still affects 1.2.0.2.
(Edited: I had previous reported that it appeared to be fixed, but the very next time I opened the world this bug happened right in front of me.)

Yes, I'm having the same issue (PE v.1.1), anonoying as it has recked the cave spider xp farm I was trying to build. I placed lots of wooden signs to control the water flow. I went to bed in the game and nearly, not all (approx 15 out of 20) detached from each other and ended up at the bottom of the water flow. The ones attached to the walls did stay however. I have replaced them several times, it doesn't matter whether I save and exit, or go to bed in game, a random amount detaches! Very frustrating and ruining the game for me. If anybody knows an alternative to placing signs to control water flow in the mean time, please let me know.

Edit to the above PE on Android v1.1.5 ...plus I spelt wrecked wrong :/

The bug is still going on on version 1.1.5. When it comes to big construction with redstone, it's getting annoying of replacing the torches everytime.

Can't reproduce in 1.2.0.11 which according to the 1.2.0.11 change log, was supposed to fix this so yay!

If this is fixed, why did my maps in item frames fall off the wall yesterday?

@unknown Which version of MCPE are you using? If you are in the 1.2.0 beta then this is fixed if you are on 1.1.5.x then this will be fixed when 1.2.0 is out of beta for all users of MCPE. A release date cannot be determined at this time.

I am using 1.1.5. Thank you for the information.

Reopening as for MCPE-30127
Anyone still having this issue in the current update? (1.5.0.14 or 1.6.0.5)

Happened with me and my little brother using different platforms, I use Windows 10 while my little brother uses iOS. We're using different versions, I'm using 1.5.0.14 while my little brother is using 1.5.1

this started happening to me a few days a go with paintings

This bug occurs with cocoa pods and beds in 1.14.30. However, I cannot reproduce this bug with any of the blocks listed in the title, so I think the fix in 1.2.0.11 was successful. I have created a new ticket for cocoa pods, MCPE-67479.

Just had this happen today. I've loaded this world a dozen times and today when I loaded in, all the paintings in the room where I had logged out in were floating on the ground. It was just the one room and it DID occur along chunk borders. I'm guessing the chunk with the paintings loaded in first without the wall in the next chunk attached to it?

Just had it happen again. Interestingly enough it didn't happen when I loaded in. I checked to make sure everything was intact, then told my friend to go ahead and join. When SHE logged in I saw everything pop off. Everything was fine for me when I loaded in but a friend joining caused the issue. This was probably the case the first time as well but I wasn't paying attention for it. She noticed it that time as well. She also loads into the same room as me. Incase I didn't mention, this is a local world.
Can we please have this ticket reopened? It's clearly not fixed.

Chris: the issue you are describing is tracked at MCPE-142303.

Thanks Helmet! I'll go check it out.