ItsRichHeart

Can confirm in Preview 26.20.26

Included a more clear Steps to reproduce:

Steps to Reproduce

• Open the world “No Cave Spider In Sulfur Cave”

• Wait on the Lime Carpet for mobs to spawn

• Once the command output ‘Mob: Here’ check which mobs spawned by flying towards the cave

• Observe which mobs spawned

• Once you checked, go back to the Lime Carpet and use the ‘Kill all mobs’ command to kill them, to reset the area

Expected result

Cave spiders spawn in the Sulfur Cave biome, just like Java Edition

Observed Results

The following mobs were observed:

• Zombie

• Zombie Villager

• Skeleton

• Creeper

• Slime

• Sulfur Cube

• Enderman

• Witch

• Spider

Explanation

The behavior file of the Sulfur Cave has the ‘monster’ tag, allowing monsters (Skeletons, Zombies, Creepers, Spiders, etc.) to spawn. However Cave Spiders aren’t counted towards the monster tag, as they don’t have a file stating that.

Also, Cave Spiders don’t have a ‘cave_spider.json’ in the behavior_packs/vanilla/spawn_rules folder. For a mob to spawn in a biome, they need to have a .json in the spawn_rules folder. So a file for that mob must be created to make them spawn in that biome

Previously, this file wasn’t necessary as these spiders only spawned from Monster Spawners in Mineshafts.

Can confirm in 1.21.90
A possible explanation for this is the tolerance margin that was introduced in 1.21.90.26 preview, which was a change because of this bug: MCPE-201608

I am unable to reproduce this in 1.21.51:

Do you have Text to Speech enabled by accident?

Can confirm in 1.21.50.25 Preview form in-game testing, as well from the bedrock-samples.

For example, in the bedrock-samples/resource_pack/blocks.json, the sandstone_slab has no defined ambient_occlusion_exponent, and therefor defaults to 1.0, which can be seen in-game as a 'darker shaded' slab when placed above another slab. The other sandstone blocks do have this component.

The above given table matches the bedrock-samples, and does not match Java (also when checked in-game)

I can confirm this in 1.21.41/43. The text is in Noto Sans in any non-player UI (Chest, Barrel, Crafting Table, Furnace, Dropper, Dispenser, etc.)

Mojangles font in player inventory:

Noto Sans font in Crafting Table UI

Noto Sans font in Chest UI

Noto Sans font in Brewing Stand UI:

I am unable to reproduce this in 1.21.43 on Windows 10. Maybe this is an Xbox-only issue?
While testing this, I did find MCPE-163716, but that bugreport talks about enchanted bows, which is not the case in this bugreport (as seen in the screenshots).
Is this still an issue for you in 1.21.43+? 

Unable to replicate this in 1.21.41/43 is this still an issue?

Can confirm in 1.21.41 after fresh install of Minecraft

https://www.curseforge.com/minecraft/texture-packs/stay-true/download/5493450 You can download it from this site. The textures are the same, so you can easily compare:

I am able to reproduce it in 1.21.21 and Preview 1.21.30.34, however the following occurs:

• Repeating steps 4 and 7 with 1 Zombified Piglin would result in no attack on the Goat. The Zombie Piglin simply ignores the goat

• Repeating steps 4 and 7 with 2+ Zombified Piglins would result in an attack on the Goat. The Piglin that gets hurt does not try to initiate the attack, however the other Piglins will start attacking the Goat. The first Piglin (that got hurt) will later follow them (usually half a second later, the Piglin gets triggered to attack as well)

Cannot reproduce it in 1.21.21 and the 1.21.30.34 Preview

I am unable to reproduce it in 1.21.30.22 Preview

I am able to reproduce this in 1.21.21 and the 1.21.30.22 Preview and have added the versions 

Can confirm for 1.21.2 Windows

Can confirm on iOS Preview 1.21.20.22 Preview

Can confirm on Windows & iOS 1.20.80 and 1.21.0.22 Preview. Here below a table of the changes and the devices. I also compared the reach in creative and survival, as that is different on touchscreen devices (iOS)

1.20.73:

1.20.80+:

The only thing that remained unchanged in 1.20.80+ is the reach in creative on touchscreen devices, which is per MCPE-10486 intended. The one in survival in survival for iOS/touchscreen devices is different between versions so that still needs to be fixed

Can confirm on Windows 1.21.0.22 Preview. 

Steps to reproduce:

1. Open the World Settings of any world

2. Click 'Export World'

3. Select any directory you want to save the world

4. Wait until the game says 'World Export Succesfully'

5. Go to the directory where your world is saved and check try to open the world

Expected Results

The world has data (more than 0 kb) and is able to be opened by Minecraft

Observed Results

The world has no data (0kb) and you cannot open the world by Minecraft