imported>MinecraftBedrockPlayer7: lag is not a critical/dangerous bug

2026-02-18T14:33:02Z

lag is not a critical/dangerous bug

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{{Infobox version
| edition = bedrock
| type = Preview
| internal = '''Windows, Xbox''': 1.21.10020.0 '''Android''': 1.21.100.20
| image = Bedrock 1.21.100.20 PatchNotes.jpg
| image2 = Bedrock 1.21.100.20.png
| build = 32724063
| editorver = 1.0.1
| versioncode = '''Android''': 
952110020 (armeabi-v7a, 34) 
962110020 (x86, 34) 
972110020 (arm64-v8a, 34) 
982110020 (x86_64, 34)
| date = June 10, 2025
| server = 1.21.100.20
| serverdl = '''Server''' [https://www.minecraft.net/bedrockdedicatedserver/bin-win-preview/bedrock-server-1.21.100.20.zip Windows] [https://www.minecraft.net/bedrockdedicatedserver/bin-linux-preview/bedrock-server-1.21.100.20.zip Linux]
| parent = 1.21.100
| prevparent = 1.21.94
| prev =
| next = Preview 1.21.100.21
| nextparent = 1.21.101
}}
<onlyinclude>

'''Beta 1.21.100.20''' (ChromeOS, Android) or '''Preview 1.21.100.20''' (Windows, iOS, iPadOS, Xbox, PlayStation) is the first beta/''Preview'' version for [[Minecraft:Bedrock Edition 1.21.100]], released on June 10, 2025,<ref>{{cite|url=https://feedback.minecraft.net/hc/en-us/articles/37264366737421-Minecraft-Beta-Preview-1-21-100-20|title=Minecraft Beta & Preview - 1.21.100.20|website=Minecraft Feedback|date=June 10, 2025}}</ref> which fixes bugs and makes some small changes to improve [[Minecraft:parity]] with {{JE}}.

== Additions ==
=== General ===
'''[[Minecraft:Accessibility]]'''
*Added screen narrator enumeration to UI buttons when adding a new server.

== Changes ==
=== Command format ===
'''[[Minecraft:World spawn]]'''
*The world spawn can now be set in the [[Minecraft:End]] using {{cmd|spawnpoint}}.

'''{{cmd|locate}}'''
*{{cmd|locate biome}} command now requires that the biome's namespace is specified (ex: {{cd|minecraft:plains}} instead of just {{cd|plains}}). Auto-complete suggestions for this command will now include namespaces.

=== Mobs ===
'''[[Minecraft:Animal]]s'''
*The ambient sound interval for all animals has been adjusted to 6 seconds, matching {{JE}}.

'''[[Minecraft:Ghast]]s'''
*The ambient sound interval for all ghasts has been adjusted to 4 seconds, matching {{JE}}.

'''[[Minecraft:Snowball]]s, [[Minecraft:Ender Pearl]]s, [[Minecraft:Ender Eye]]s, [[Minecraft:Experience Bottle]]s, [[Minecraft:Splash Potion]]s, [[Minecraft:Lingering Potion]]s, and [[Minecraft:Ice Bomb]]s'''
* Their sprites, when rendered in the world, now have the correct scaling and positional offset.
* They now match {{JE}}, and also match better with their collider.

=== General ===
{{Missing information|section|The which marketplace-related menus were changed.}}
'''[[Minecraft:UI]]'''
*"Owned" or "Download" is now displayed on items the player owns outside of the "My Library" page.
*The Marketplace Pass chevron will now show on items that the user owns while on normal Marketplace pages. Not on the inventory. Owned/Download text moved to the right.
*Updated Marketplace Pass chevron to show on items in the inventory.
*Moved the "Owned"/"Download" text to the right side.

'''[[Minecraft:Settings#Audio|Audio Settings]] Screen'''
*The audio default volumes have been updated.
*Audio settings have been updated with a brand-new look and improved navigation:
**Each setting now includes a helpful description, making it easier to understand what it does.
**Improved interaction with sliders that are now smoother and more responsive than before.
[[File:New UI - Audio Settings Screen Menu (Bedrock Preview 1.21.100.20).png|thumb|New Audio Settings Screen.]]

=== World generation ===
'''[[Minecraft:Tree]]s'''
*Trees now generate more sparsely in [[Minecraft:grove]]s.
*Trees now generate more frequently in [[Minecraft:snowy plains]].

'''[[Minecraft:Frozen Ocean]]'''
*Its surface is no longer entirely covered by ice, and now features patches of open water.
*Icebergs in frozen ocean biomes now generate with a shape and frequency that more closely matches {{JE}}.

'''[[Minecraft:Deep Frozen Ocean]]'''
*Its surface is no longer covered by ice and now consists entirely of open water.

'''[[Minecraft:Old Growth Spruce Taiga]] and [[Minecraft:Old Growth Pine Taiga]]'''
*Increased the size of the [[Minecraft:podzol]] patches generated beneath mega pines and mega [[Minecraft:spruce]]s.
**This change affects both world generation and trees grown by players.

'''[[Minecraft:Mushroom]]s'''
*Mushrooms now properly generate under trees in [[Minecraft:swamp]]s and other biomes where they naturally generate.

'''[[Minecraft:Seagrass]]'''
*Seagrass no longer pokes through [[Minecraft:ice]] when it generates in shallow [[Minecraft:water]] in biomes that have ice on the water's surface.

=== Technical ===
'''[[Minecraft:Add-On]]s and Script Engine'''
*Custom biome names are no longer implied by their filenames. Biome names are explicitly specified via the {{cd|identifier}} property under the {{cd|description}} sub-object of their JSON definition.
*Biome identifiers must now be namespaced (ex: {{cd|minecraft:plains}}). Client biomes with a format version lower than 1.21.90 will have their identifier automatically prefixed {{cd|minecraft:}} when loaded if no namespace is already specified.
*Updated biome documentation to match updated biome JSON formatting and requirements.

'''[[Minecraft:API]]'''
*The {{cd|message}} parameter of the {{cd|setText}} method on {{cd|BlockSignComponent}} no longer accepts a {{cd|RawText}} as an option. This option was redundant as it is covered by the existing {{cd|RawMessage}} option. This affects the {{cd|setText}} method in all versions.
*Updated many error strings to use consistent punctuation.
*The properties {{cd|minValue}} and {{cd|maxValue}} on the {{cd|ArgumentOutOfBoundsError}} class are now optional.
*Updated several APIs to throw {{cd|ArgumentOutOfBoundsError}} instead of {{cd|Error}} where appropriate. This affects the following APIs in all versions:
**{{cd|Entity.addEffect}} for when the {{cd|amplifier}} setting is out of bounds (0 - 255) or {{cd|duration}} setting is out of bounds (1 - 20000000).
**{{cd|Entity.applyImpulse}} for when the {{cd|vector}} parameter is out of bounds (-1000 - 1000 per axis).
**{{cd|ItemStack.setLore}} and {{cd|ContainerSlot.setLore}} for when the {{cd|loreList}} parameter is out of bounds (0 - 100 max lines, 0 - 1000 max length per line).
**{{cd|ItemStack.setAmount}} and {{cd|ContainerSlot.setAmount}} for when the {{cd|amount}} parameter is out of bounds (0 - 255).
*Some existing errors that throw {{cd|ArgumentOutOfBoundsError}} have been updated to use a standardized error message. This affects the following APIs in all versions:
**{{cd|ScreenDisplay.setTitle}} for when the {{cd|fadeInDuration}}, {{cd|stayDuration}} or {{cd|fadeOutDuration}} settings are out of bounds (min value of 0).
**{{cd|StructureManager.placeStructure}} for when the {{cd|integrity}} setting is out of bounds (0 - 1).
**{{cd|PlayerAimAssist.setAimAssistSettings}} for when the {{cd|viewAngle}} setting is out of bounds (10 - 90) or {{cd|distance}} setting is out of bounds (1 - 16).
**{{cd|ItemStack.setNameTag}} and {{cd|ContainerSlot.setNameTag}} for when the {{cd|nameTag}} parameter length is out of bounds (0 - 255).
*Some existing errors that throw {{cd|InvalidArgumentError}} have been updated to use a standardized error message.
**{{cd|CustomSpawnRulesRegistry.registerObstructionCallback}} for when the {{cd|predicate}} parameter is empty or a duplicate.
*Released {{cd|DyeableItemComponent}} to {{cd|stable}}.

'''Block Components'''
*Modified {{cd|minecraft:geometry}} block component.
**Field {{cd|uv_lock}} no longer requires "Upcoming Creator Features" experiment to work, Json {{cd|format_version}} still needs to be >= {{cd|1.19.80}}.

'''Components'''
*Content warnings will log missing entity references in {{cd|Spawn Rule}} JSON.
*Content warnings will log missing references in {{cd|Client Biome}} JSON.
*The {{cd|minecraft:body_rotation_axis_aligned}} component has been renamed to {{cd|minecraft:rotation_axis_aligned}}.

'''Entity Components'''
*Made the schema for the {{cd|minecraft:tick_world}} entity component stricter so that the parsing now refuses out of range values for {{cd|radius}} and {{cd|distance_to_players}}.

'''Graphical'''
*Changed cloud quality to player visible option and not a dev only option.

'''[[Minecraft:Jigsaw]]'''
*Added {{cd|minecraft:blockstate_match}} and {{cd|minecraft:random_blockstate_match}} rules to jigsaw processors.
*Added heightmap projection type {{cd|none}} and made it the default setting, which instead of performing heightmap calculations uses the starting placement position.

== Experimental ==
These additions and changes are accessible by enabling the "Beta APIs", "Experimental Creator Camera", and "Custom Biomes" [[Minecraft:experimental]] toggles.

=== Additions ===
==== Technical ====
'''API'''
*Added class {{cd|InvalidItemStackError}} to {{cd|beta}}.

'''[[Minecraft:Commands]]'''
*Added the {{cd|fov_set}} keyword to the {{cmd|camera}} command for changing the camera's field of view. Enabled with the Experimental Creator Camera toggle.

'''Scripting'''
*Added support for text to speech for tooltips at Server-UI forms.

'''UI'''
*Added support for navigation using keyboard and gamepad for tooltips at settings. Also, to be showed always inside the visible area. Mobile resolutions were having issues with this.

=== Changes ===
==== Technical ====
'''API'''
*Moved class {{cd|PlayerHotbarSelectedSlotChangeAfterEvent}} from {{cd|beta}} to {{cd|2.1.0}}.
*Moved class {{cd|PlayerHotbarSelectedSlotChangeAfterEventSignal}} from {{cd|beta}} to {{cd|2.1.0}}.
*Moved class {{cd|PlayerInventoryItemChangeAfterEvent}} from {{cd|beta}} to {{cd|2.1.0}}.
*Moved class {{cd|PlayerInventoryItemChangeAfterEventSignal}} from {{cd|beta}} to {{cd|2.1.0}}.
*Moved interface {{cd|HotbarEventOptions}} from {{cd|beta}} to {{cd|2.1.0}}.
*Moved interface {{cd|InventoryItemEventOptions}} from {{cd|beta}} to {{cd|2.1.0}}.
*Moved enum {{cd|PlayerInventoryType}} from {{cd|beta}} to {{cd|2.1.0}}.
*Class {{cd|HotbarEventOptions}}.
**Field {{cd|allowedSlots}} added bound validation, numbers inside the array must be between 0 and 8.
*Class {{cd|InventoryItemEventOptions}}.
**Field {{cd|allowedSlots}} added bound validation, numbers inside the array must be positive.
*{{cd|ItemInventoryComponent}}
**Bundle UI now renders non-contiguous items added to the container with this API correctly.

'''[[Minecraft:Experiment]]al'''
*{{cmd|locate structure}} command (and similar structure-searching gameplay elements) will now quickly return no result if experimental Custom Biomes have replaced all of the biomes where that structure could appear.

'''Jigsaw'''
*{{cd|max_distance_from_center}} now parses horizontal and vertical values separately in an object while supporting horizontal only with parsing as a constant, the vertical value is now optional and defaults to having no limit.

'''World generation'''
*Mixing Terrain matching and Rigid Structures will no longer sink rigid structure 1 block.
*Chunks will no longer infinitely load when multiple structures are used within a structure set.
*Can now use {{cd|minecraft:empty_pool_element}} jigsaw template pools to represent empty elements.

== Fixes ==
{{fixes|project=MCPE|fixedin=1.21.100.20 Preview
|;old
|63460|Water is not transparent in swamp biome
|74983|Grass blocks can sometimes generate in Mushroom Islands
|88837|Piglin brutes do not despawn in Peaceful mode
|114253|Squid rendering is offset in the -Y direction
|137029|Swamp Biome no longer has a bumpy shoreline
|140517|Large spruce tree (2x2) can generate half or fully floating
|149587|Pressing "choose new skin" button and then pressing back button prevents skin from being changed until game is restarted
|157125|Non-player entities teleport to the void when transported from the End to the Overworld
|159044|Allay not disconnecting from lead
|163558|Breaking a fence that has an entity tied to it keeps the lead floating for a few seconds
|185429|{{cd|<message: message>}} command argument can be empty and runs successfully
|186435|Allays can hold leads
|187041|Leash knots do not adapt to the size of wall blocks that are not connected to anything when animals are leashed to it
|190531|{{cd|flipbook_textures.json}} does not support animating multiple variants of a same block and only animates the last entry for that block.
|190751|No camera perspective button in spectator mode
|190776|Standing in Scaffolding or Powder Snow causes pick-block button on mobile to disappear
|194268|Stacking multiple Add-Ons warning button says "Link" instead of "Read more"
|197900|When I load a world I get a notification saying Cloud Syncing has failed check internet connection and try again. I am connected to the internet just fine.
|217597|Vibrant Visuals: Lead is animated incorrectly in first person view
|217667|Clicking a world thumbnail while in the grid layout no longer plays click sounds
|218617|"Invite to Game" button obscured by scoreboard
|219364|{{cmd|music}} command stops working after leaving and rejoining world until game restart
|219554|New Tears disc has extra spaces in its name
|220347|The {{cd|on_fire_color}} component in a mob's render controllers does not display the right color in game
|220829|Addon Entities using Properties and Render controllers now have texture replacement issues in the v1.21.82 update
|otherissuescount=18}}
'''Other'''
*Emoting players will no longer get stuck in a boat.
*Fixed a bug where caustics were not appearing for player hand and held items in first person view.
*Fixed the spyglass and fire effects in first person not receiving gamma calibration in Vibrant Visuals.
*Fixed a bug that caused bottle o' enchanting not to glow when thrown in Vibrant Visuals.
*Fixed clusters of mangrove root blocks displaying a non-uniform color.
*Fixed chain blocks not being rendered with PBR properties defined by the texture set.
*Fixed an issue that caused chain blocks to change PBR properties of surrounding blocks.
*Fixed a bug where glow squid would not act as leash anchor points.
*Fixed a bug that caused happy ghast to not rotate properly if dismounted while moving vertically.
*Fixed rare crashes during the app suspension on Xbox.
*Player dots on the locator bar now move smoothly when strafing near other players.
*Player dot on the Locator Bar now stops 1 pixel before the edge of the bar.
*Fixed a bug which could cause the bed screen to not be removed properly when being disconnected from a server.
*Fixed a bug where the {{cd|includeLiquidBlocks}} property on {{cd|BlockRaycastOptions}} would not correctly result in hits on liquids if it didn't also reach a solid block afterward.
*Fixed a crash with the {{cd|DebugDrawer}} when used too early in the client joining a world (such as inside the {{cd|playerSpawn}} event).
*Fixed assert "can't add a new vertex field at this point: COLOR" when loading some worlds that contained clusters of mangrove roots blocks.
*Fixed assert "can't add a new vertex field at this point: TEXCOORD_4" when loading some worlds that contained chain or end portal blocks.
*Fixed an issue where projectiles were shot in the wrong direction when using touch controls and custom cameras.</onlyinclude>

== References ==
{{reflist}}

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Minecraft:Bedrock Edition Preview 1.21.100.20 - Revision history

imported>MinecraftBedrockPlayer7: lag is not a critical/dangerous bug