When a redstone signal is sent through a barrel, initially it works as intended. When the chunk gets unloaded however the barrel stays in a permanent redstone state and can't be updated. For example in the picture this simple mailbox design is meant to allow the player to turn the redstone torch on and off with the lever. It works when the barrel is first placed but when the chunk is reloaded the lever has no effect on the redstone torch.
Linked issues
Attachments
Comments 7

This appears to be the same issue as https://bugs.mojang.com/browse/MCPE-45253
This appears to be the same issue as https://bugs.mojang.com/browse/MCPE-45253
1.13.0.18 and 1.14.0.1 also. Related to:Â
1.13.0.18 and 1.14.0.1 also. Related to:Â
Thank you for your report!
We're actually already tracking this issue at MCPE-46742, so we will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature, to see if the issue has already been mentioned.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki
Thank you for your report!
We're actually already tracking this issue at MCPE-46742, so we will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature, to see if the issue has already been mentioned.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki