Minecarts stopping, derailing, or turning around at every simple corner

Right (non-destructive) click sometimes registers no action, sometimes a rapid succession of right clicks, sometimes even a left-click (destructive!)

Some textures (Easy to confirm with Netherack in the Nether) jump and change rotation as you move closer or farther from them

Nether portals not always allowing you to step out, sending you back instead

Chunks do not render behind the player in F5. Perhaps culling should calculate from camera POV instead of presuming head position.

Some chunks are not rendered in first person from some angles in certain situations (incorrect frustum culling)

Can place/take water/lava/lily pads outside world border and inside spawn protection

Endermite, phantom, silverfish and baby turtle sinking and suffocating in soul sand

Various Particles glitchy movement