An redstone torch that's turned off will block a redstone signal from traveling up blocks. In attachment PE1, the redstone on top of the iron block is turned off. For reference, in attachment PC1 is the same circuit in the PC version, with the redstone on top the iron block being on.
Linked issues
Attachments
Comments 4

[media][media]
This is a duplicate of MCPE-11931.
This is a duplicate of MCPE-11931.
Resolving as a duplicate of MCPE-11931. If needed, feel free to add comment summarizing your experience there.