Leonid

oh sorry. how I can close request?

Well pillagers don't shoot fireworks so I think this is intentional, but they should update the description of the advancement to something like "Kill a pillager with a crossbow and arrow"

Confirmed in 1.16.1

You still get advancements "Adventure" (Kill any mob) and "Monster Hunter" (Kill hostile mob) when killing with crossbow + fireworks.

That is not a bug, it is an intended feature so players in creative like test out a mob grinder or something, and kill everything with commands, don't need to somehow empty their inventory.

In 1.16 Release Candidate-1 It now moves up no matter which hand is it in.

It might be because your computer is too slow and Minecraft eats a lot of CPU

I think that happened because you might have a slow/laggy computer

I think it is not a bug, I think this is supposed to be like this

Also, If you wait enough, the block will disappear and will not drop itself. takes ~10 secs

Oh sorry i was playing single player and I searched how I could and could not find that report.

I think it could be used for defending a village from sieges. Having one or two "Bait" Villagers in the open inside a cage so zombies would stick to the baits. Could be useful on hard difficulty

Most likely you have gamerule "Can spectators generate new terrain?" false, try changing to creative.

Are you sure that you did not "Tennis Hit" The fireball back at the ghast? Because when you hit the fireball, it counts as "Your" Attack.

I was helped by the inclusion of User Account Control (UAC). Before that I used the borderless Gaming prog

I solved the problem of enabling User Account Control (UAC). Before that, I used the program Borderless Gaming