Josh Ram

That description is correct for survival, where achievements are normally earned, making it correct-ish.

I was unable to reproduce.

I cannot reproduce this.

I cannot reproduce this bug, is there anything else I need to do? I am standing inside a villager's house and while it was raining, I picked up an item.

Entity's do not stop particles.  They would have to make a major change to the game to implement this. I think this is working as intended.

The whole point of water dripping is to warn you that there is liquid above you. This should be intended.

This is working as intended.

Is this finally getting fixed?

It has been marked as Important, so I’m pretty sure it is not intended.

I haven't had this happen to me, but if it is, just try closing and re-opening the game.

Duplicate

Can confirm

Can confirm

When I try to build a wither, it doesn't work in creative or survival.

I can confirm.

If I'm correct, then end crystals are entities. So try using this command: /kill @e[type=end_crystal]

This has been fixed as of 19w39a

Confirmed for 19w38b

This bug is so annoying when I am trying to work with redstone and try to put it on top of a piston.

It does it even when it is empty, I will include that.