Sometimes, old Minecraft versions do not load on version selection.

Dark borders and outlines with mip-mapping

Server lag reduces knockback received.

When first loading a world, chests and trapped chests have a visual glitch in hotbar

Blowing up chest or trapped chest while looking inside it causes crash.

Death counter does not update

/kill <playername> command doesn't work on server window command box.

Sprinting across 1-block gaps.

Double sound for fall damage

Error loading MinecraftLauncher.jar / Could not get the JAWT interface

Player damage sounds not playing

Graphical Piston Glitch

Extreme Performance Issues

Minecarts don't update thier sound after it has already started.