When you try to run redstone up the side of observers blocks it doesn't go back down. Not much more to say. There are more specifics of my pc info in the screenshot. Thanks in advance!
-Bonn2
MC-109870
Redstone Dosen't Travel Down Observers in The 1.11Pre
Resolved
Duplicate
0
Bonn2
(Unassigned)
Unconfirmed
Minecraft 1.11 Pre-Release 1
Retrieved
Redstone interacts with observers, as if they were an upside down slab or stair block, glowstone, or any other transparent block redstone can be placed on. Redstone cannot flow downward on these blocks, working as a diode.