Redstone signal doesn't forward correct on sea lantern over edge
If you put redstone powder over a sea lantern the signal will not be forwarded from upper side to lower side (see photo), but from lower side to upper side.
Created Issue:
Redstone signal doesn't forward correct on sea lantern over edge
If you put redstone powder over a sea lantern the signal will not be forwarded from upper side to lower side (see photo), but from lower side to upper side.

Duplicate of
MC-134366which was later resolved as "Works As Intended".I don't think so that this is a duplicate of
MC-134366because this isn't about conduction through this block, it's about conduction "around" this block. Logically seen the powder bridges over this block - it sticks at the outer edges.I've found out the exactly same behavior happens with upside down stairs. The redstone signal travels from bottom to top but not in the opposite direction. I assume that these are not the only blocks affected by this behavior.
And something about consistency - why (see picture) works the version at the bottom if sea lanterns didn't conduct redstone signals ?
i think that is because sea lanterns are transparent blocks, like glass, or upside-down stairs. so, i think that is intended
As mentioned above, transparent blocks disallow downwards redstone connectivity, meaning redstone signals can't travel down from a transparent block (they can still travel upwards). This behavior is working as intended as per
MC-3311/MC-134366.