Stairs can only be mined while pointing at the actual block (i.e. you can hit through the empty space).
However, when you point at the block with outline selection turned on, the wireframe outline is that of a full block, and includes the area that can't be targeted.
[media][media]
Affects these blocks (may be incomplete):
Stairs
Extended piston heads
Scaffolding
Hopper
Glow Lichen
Other blocks have an accurate wireframe that shows the true hitbox.
Related issues
is duplicated by
Attachments
Comments
migrated
PikaBlu
Effects 1.14.60.
migrated
It also affects hoppers in the beta, because they changed the hitbox of hoppers. It seems like the outline for the hitbox can only show as a cuboid and not in other shapes this causes the outline to not match the hitbox of the block. This also was the case on java edition, but it got changed in 1.13. They haven’t taken over this change to bedrock edition. It affects the following blocks (list may be incomplete):
stairs
hoppers in the beta
the piston head
PikaBlu
Missing 1.16.0.
migrated
And Chests also have the wrong Hit Box
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Affects 1.16.210
migrated
This also affects iron bars because in the end you can't shoot arrows through it instead you have to break the iron bars unlike Java.
edit: edge walls, warped and crimson vines and signs are also affected to.
Makzevu
The ticket that handles iron bars, fences, and glass panes is reported at MCPE-70138 because these blocks actually have improper hitboxes on their own, not an improper visualization of hitboxes. Projectiles collide with hitboxes, not bounding boxes, so arrows will not be able to pass through iron bars until the hitbox is altered.
As for walls, the hitbox and bounding box are not aligned to its model box (the same situation that the anvil is in), but that's not what this ticket is about.
kmb600
affects 1.16.230.54
migrated
affect 0.13.0 and upwards referung to the windows 10 plataform. If you can, please add that
GoldenHelmet
Eduardo Tenorio Pereira de Oliveira: there is no reason to add outdated versions to the ticket. Only the current release and beta versions are supported.
migrated
Affects 1.19.41
JervieA20
Still affected in 1.19.50.24 Preview
Minecraft386882
Confirmed in 1.21.44
silentwisperer
Also affects sculk veins and resin clumps when there are multiple in one block.
tryashtar