Seems to work fine for me, it could have been a night with a new moon (opposite of full moon) which makes it impossible for slime to spawn.
Can confirm, see this video. The starting room structure (after the starting countdown) should have spawned but didn't.
Can confirm.
I've found 2 spots where its possible for mobs to escape. The one with the smoker makes it possible for any animal to escape, but the one with the snow pile always makes it possible for horses to escape. The pen with 4 water logged stairs doesn't make it possible to escape (from what I have tested).
I was not able to replicate this. Are you sure your difficulty wasn't set to peaceful?
Can confirm.
[media]Can confirm. Although the first command didn't work for me, here's the fixed one:
/give @s minecraft:iron_sword[minecraft:custom_model_data=2561001,minecraft:custom_data={customdata:1b},minecraft:item_name='{"text":"custom"}',minecraft:max_damage=50]
This bug still seems in-game even though this issue has been marked as fixed in 24w36a. See attachment
[media].
Hey, we don't have access to the google drive link you provided, however I was able to reproduce the bug, see attachment. Edit: this issue is duplicating MC-103452 like beebee commented.
Can confirm.
Can confirm, it also visually changes when you reload the chunk its in.
Can confirm. See attachment.
Can confirm in 24w34a.
Can confirm, the animation also doesn't play in 3rd person. See attachtment.
This probably isn't WAI since custom world generation and custom dimensions are experimental features, whereas structure files are not. Structures work perfectly fine when loaded from a minigame world.