When I was editing my resource pack, I edited the texture for the selected hotbar slot, but when I went into the game, I saw that the bottom 2 rows of pixels weren't present. I thought it was a problem with my resource pack, so I switched to default and saw there was the same problem. It's easiest to see with the bottom left and right pixels of the texture when selecting slot 1 or 9, respectively.
Linked issues
is duplicated by 10
MC-85131
Hotbar selector improperly mapped
Resolved
MC-96230
Bottom right/left pixels are missing from the hotbar selector.
Resolved
MC-152903
Pixel line missing on toolbar / widgets.png file
Resolved
MC-209139
Hotbar Selector Cut Off
Resolved
MC-222645
Inventory selection texture cuts of too early
Resolved
Attachments
Comments 12
Still happens as of 1.12. I've uploaded an image that uses a custom resource pack that showcases this issue.
Partially fixed, the bottom row is still not visible (because it's off the window); that should probably be a separate report, but I'm not invested enough into this issue to keep that up to date.
That seems like it should be a separate report since the bottom pixel not being rendered while the area it occupies should be on screen (as opposed to it being rendered off screen) is different.
Can reproduce in Minecraft 1.8.6 and other 1.8.x versions... Please update affected versions!