Diamond armor is the highest set that mobs can pick up

Villagers don't leave their houses/cannot open doors.

Dragon's breath particles floating into the air instead of staying on the ground

Missing sounds when a hostile mob shoots arrows or throws trident

Villagers have broken models in 1.13.x beta

Evoker has missing particles when attacking on the left side

Broken texts on the menus when user uses certain languages

Swimming mobs stop swim in the water

Lag when mobs attack

Vexes are slow and not aggressive enough

Added entities are cats and they can change cats behavior to hostile.

Strays now has the correct bow holding animation when shoots but skeletons not.

Incorrect saving world message!

Salmon have missing body parts.

Strange world generation lag and a fix for it.

Incorrect stray model in the beta

Drowneds cannot use trident that has given by command

Copy/Paste not working!

Zombies don't want to break the villagers doors.

Witherboss shooting backwards

X-ray glitch when a block above the player while in water.

Wrong text when updating gamemode with /gamemode command

Generating lag spikes when ticking the world

The world will crash when the map loaded

The coral fan is different on the side of the blocks in the bedrock edition

Performance issue with particles causing lag

When the new chunks are loading the client create huge lag spikes in singleplayer.( when loading 5-20 FPS, when loaded back to normal 50-60 fps.)

Blockcrack particles are very laggy

particle effects are very laggy

skeletons and strays shooting with every item and witherskeletons can't shoot with bow if you use /replaceitem command

angry enderman don't make angry sounds

Angry enderman don't make angry scream sounds!

There are incorrect sounds on the servers

zombie bug

craft and inventory bug

bad ghast charge sound

bad death animation

bad death animation

There are few grasses in the plains biome in the new bedrock edition

some bugs that need to be repaired

Enderman don't make angry sounds

Wither boss bug

Sometimes head swivels out of the mobs