Gravel Stacks inside each other when falling in some cases, like minecart stacking that stack up...

Endportal 'Portal' texture does not show its there when looking up from under it.

tall grass (and other double tall plants) grow into a broken single block instead of a double tall block

Hostile Monsters, that can burn in sunlight, trying to catch on fire in 'rain/stormy' weather

/deop command does not use UUID to remove players.

Dropping sand/gravel 1+ blocks above soul sand, breaks into items upon impact.

Dragging items with the middle mouse button causes block count to go negative

Snow Transparency color changes abnormally with water background

Entities fall thru block after passing over blocks > 1/8th thickness < 1/2 thickness

Chest model has overlapping parallel faces causing texture fighting

Server and client can disagree on block placement range