# \#Chunking

**URL:** https://forums.unrealengine.com/tag/chunking/10861.md

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## [Does ForceOneChunkPerFile Actually Assign Files to the Lowest Numbered Chunk? ](https://forums.unrealengine.com/t/does-forceonechunkperfile-actually-assign-files-to-the-lowest-numbered-chunk/2745563)

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**Author:** [@euOnmyoji](https://forums.unrealengine.com/u/euOnmyoji)\
**Replies:** 0\
**Last updated:** [August 21, 2026, 3:52pm UTC](https://forums.unrealengine.com/t/does-forceonechunkperfile-actually-assign-files-to-the-lowest-numbered-chunk/2745563 "2026-08-21T15:52:53Z")

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I have assets that are assigned to specific chunks for individual packaging, but there’s also a fallback label that catches all assets. This means some assets end up in multiple chunks simultaneously. I have several chu…

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## [\[5.8\] BuildPatchTool fails with "FeatureLevel was not provided"](https://forums.unrealengine.com/t/5-8-buildpatchtool-fails-with-featurelevel-was-not-provided/2732453)

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**Author:** [@placidetmuzo](https://forums.unrealengine.com/u/placidetmuzo)\
**Replies:** 2\
**Last updated:** [July 27, 2026, 10:21am UTC](https://forums.unrealengine.com/t/5-8-buildpatchtool-fails-with-featurelevel-was-not-provided/2732453 "2026-07-27T10:21:10Z")

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Summary When packaging a project with bBuildHttpChunkInstallData=True and assets assigned to chunks \> 0, BuildPatchTool (BPT) fails with: FeatureLevel was not provided. Please provide the FeatureLevel commandline argumen…

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## [UAT Only Generating 1 Pak File](https://forums.unrealengine.com/t/uat-only-generating-1-pak-file/2726495)

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**Author:** [@Yoneech](https://forums.unrealengine.com/u/Yoneech)\
**Replies:** 1\
**Last updated:** [June 5, 2026, 7:50pm UTC](https://forums.unrealengine.com/t/uat-only-generating-1-pak-file/2726495 "2026-06-05T19:50:17Z")

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Hi, I’m using UE4.25 for a legacy project and I’m trying to build my project using the command line. However, UAT is only generating a single pak file. My project settings have “Generate Chunks” as true. I confirmed th…

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## [Disappearing mesh with fracture mode](https://forums.unrealengine.com/t/disappearing-mesh-with-fracture-mode/534591)

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**Author:** [@mx037](https://forums.unrealengine.com/u/mx037)\
**Replies:** 9\
**Last updated:** [March 2, 2026, 2:52am UTC](https://forums.unrealengine.com/t/disappearing-mesh-with-fracture-mode/534591 "2026-03-02T02:52:20Z")

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Hi all, I have an issue with the fracture in UE 5.0.1 : the mesh disappears when I click on “new” in the fracture module to generate the geometry collection. It’s not true for all meshes but for the rocks meshes i need …

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## [Issue with Chunking during Packaging for Unreal Engine](https://forums.unrealengine.com/t/issue-with-chunking-during-packaging-for-unreal-engine/1348292)

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**Author:** [@A.RADIX](https://forums.unrealengine.com/u/A.RADIX)\
**Replies:** 5\
**Last updated:** [February 16, 2026, 11:07am UTC](https://forums.unrealengine.com/t/issue-with-chunking-during-packaging-for-unreal-engine/1348292 "2026-02-16T11:07:00Z")

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Hello, This topic is related to the previous one I made : Chunk in package are not the same as in Editor And this is the next step : We are using Pixel Streaming on Windows machines to deliver our solution. The .pak …

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## [Is it possible to use a Skeletal Mesh generated/packaged elsewhere in a packaged Unreal game at runtime?](https://forums.unrealengine.com/t/is-it-possible-to-use-a-skeletal-mesh-generated-packaged-elsewhere-in-a-packaged-unreal-game-at-runtime/2667069)

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**Author:** [@kimyujaaaa](https://forums.unrealengine.com/u/kimyujaaaa)\
**Replies:** 2\
**Last updated:** [October 30, 2025, 6:13am UTC](https://forums.unrealengine.com/t/is-it-possible-to-use-a-skeletal-mesh-generated-packaged-elsewhere-in-a-packaged-unreal-game-at-runtime/2667069 "2025-10-30T06:13:23Z")

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Hi everyone, I’m working on a project where an external system (AI service) generates Skeletal Mesh assets and uploads them to AWS S3. In my packaged Unreal Engine 5.5 game, the user can download those assets at runtim…

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## [Android DLC build fails](https://forums.unrealengine.com/t/android-dlc-build-fails/2657156)

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**Author:** [@Avatarus](https://forums.unrealengine.com/u/Avatarus)\
**Replies:** 0\
**Last updated:** [September 16, 2025, 1:48pm UTC](https://forums.unrealengine.com/t/android-dlc-build-fails/2657156 "2025-09-16T13:48:15Z")

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Building DLC with Http chunks in project launcher fails at the “UAT post launch cleanup” stage. It also happens with a newly created project. This bug seems to have appeared in version 5.3 \[2025.09.16-13.06.33:773\]\[ …

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## [Some stupid Chunks in SkeletalMesh LOD0 - how to fix them ?? FBX import from Maya](https://forums.unrealengine.com/t/some-stupid-chunks-in-skeletalmesh-lod0-how-to-fix-them-fbx-import-from-maya/770444)

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**Author:** [@JimmyPlatige](https://forums.unrealengine.com/u/JimmyPlatige)\
**Replies:** 2\
**Last updated:** [April 6, 2025, 1:13pm UTC](https://forums.unrealengine.com/t/some-stupid-chunks-in-skeletalmesh-lod0-how-to-fix-them-fbx-import-from-maya/770444 "2025-04-06T13:13:22Z")

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Hello Could You please tell me why some chunks appear on imported skeletal mesh in a first place :? They are different to material ID, and they are not set by any person. We import regular skeletal mesh from maya via f…

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## [\[4.27\] Play Asset Delivery - no download progress update](https://forums.unrealengine.com/t/4-27-play-asset-delivery-no-download-progress-update/1930453)

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**Author:** [@dmitri2812](https://forums.unrealengine.com/u/dmitri2812)\
**Replies:** 2\
**Last updated:** [April 2, 2025, 1:47pm UTC](https://forums.unrealengine.com/t/4-27-play-asset-delivery-no-download-progress-update/1930453 "2025-04-02T13:47:51Z")

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Hello. Trying to setup PAD. Created test project with 3 chunks (On-Demand). Uploaded it on GP, all looks good I cannot get a correct update on the status of asset pack downloads. My steps: Set up Play Asset Deliv…

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## [Chunks not generating in Unreal 5.5](https://forums.unrealengine.com/t/chunks-not-generating-in-unreal-5-5/2153752)

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**Author:** [@TonyStarick](https://forums.unrealengine.com/u/TonyStarick)\
**Replies:** 4\
**Last updated:** [March 31, 2025, 7:18pm UTC](https://forums.unrealengine.com/t/chunks-not-generating-in-unreal-5-5/2153752 "2025-03-31T19:18:02Z")

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UE\_5.5 : Chunks not generating, even if I mark runtime asset label only asset label is in the chunk but not assets in the folder. I followed the documentation to generate chunks. I added three asset labels in three fold…

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## [Naming Clash When Importing FBX Sharing Same Skeleton](https://forums.unrealengine.com/t/naming-clash-when-importing-fbx-sharing-same-skeleton/595282)

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**Author:** [@zonfar2](https://forums.unrealengine.com/u/zonfar2)\
**Replies:** 7\
**Last updated:** [December 21, 2024, 1:58pm UTC](https://forums.unrealengine.com/t/naming-clash-when-importing-fbx-sharing-same-skeleton/595282 "2024-12-21T13:58:08Z")

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I’m having a naming issue when importing 2 different characters that share a skeletal mesh. It is renaming some of my bones due to a name clash. I’m curious why its renaming my bones, what I can do to avoid it, as having…

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## ["Mobile Packaging Wizard" aab file created above 150mb. also 1gb .obb file created](https://forums.unrealengine.com/t/mobile-packaging-wizard-aab-file-created-above-150mb-also-1gb-obb-file-created/547433)

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**Author:** [@devmetaforce](https://forums.unrealengine.com/u/devmetaforce)\
**Replies:** 1\
**Last updated:** [July 25, 2024, 8:55am UTC](https://forums.unrealengine.com/t/mobile-packaging-wizard-aab-file-created-above-150mb-also-1gb-obb-file-created/547433 "2024-07-25T08:55:35Z")

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Our MMO game size is about 15gb. We want to make it like “Genshin Impact” user download strategy on Play store. So we found this “mobile packaging wizard” but when we use almost VOID MAP for android apk (1st phase). But …

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## [Updating a packaged game with chunks, how to know which pak changed?](https://forums.unrealengine.com/t/updating-a-packaged-game-with-chunks-how-to-know-which-pak-changed/1835429)

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**Author:** [@dschertenleib](https://forums.unrealengine.com/u/dschertenleib)\
**Replies:** 1\
**Last updated:** [May 2, 2024, 8:31pm UTC](https://forums.unrealengine.com/t/updating-a-packaged-game-with-chunks-how-to-know-which-pak-changed/1835429 "2024-05-02T20:31:35Z")

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I am using pak files and chunks with primary asset labels, all work fine except: -When i package a new version of my application in a new folder, the sizes of most of the packages changes Also i did try with the Projec…

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## [How to load pak file at runtime](https://forums.unrealengine.com/t/how-to-load-pak-file-at-runtime/1800424)

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**Author:** [@Player\_003](https://forums.unrealengine.com/u/Player_003)\
**Replies:** 0\
**Last updated:** [April 12, 2024, 1:40pm UTC](https://forums.unrealengine.com/t/how-to-load-pak-file-at-runtime/1800424 "2024-04-12T13:40:14Z")

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So i made pak file download using Runtime Files Downloader but it requires restart in order to work, is there any way to mount it/load it without restart

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## [How to separate umap into different downloadable file for android](https://forums.unrealengine.com/t/how-to-separate-umap-into-different-downloadable-file-for-android/1675118)

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**Author:** [@Player\_003](https://forums.unrealengine.com/u/Player_003)\
**Replies:** 0\
**Last updated:** [February 8, 2024, 9:40pm UTC](https://forums.unrealengine.com/t/how-to-separate-umap-into-different-downloadable-file-for-android/1675118 "2024-02-08T21:40:51Z")

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So i want to make it so some levels in game can be downloaded separately and i was trying to assign level to different chunks but i still got just normal .aab with everything cooked inside it i tried making PrimaryAsset…

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## [Packaging fails when using chunks](https://forums.unrealengine.com/t/packaging-fails-when-using-chunks/723361)

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**Author:** [@Etyuhibosecyu](https://forums.unrealengine.com/u/Etyuhibosecyu)\
**Replies:** 6\
**Last updated:** [December 13, 2022, 9:52am UTC](https://forums.unrealengine.com/t/packaging-fails-when-using-chunks/723361 "2022-12-13T09:52:56Z")

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Hello! I am using UE4.27 and try to package my game on Windows using chunks but the packaging fails with the following error: UATHelper: Cooking (Windows (64-bit)): LogStreaming: Warning: Failed to read file 'D:/Unrea…

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## [static mesh](https://forums.unrealengine.com/t/static-mesh/695568)

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**Author:** [@soumya-sen](https://forums.unrealengine.com/u/soumya-sen)\
**Replies:** 0\
**Last updated:** [November 21, 2022, 6:56am UTC](https://forums.unrealengine.com/t/static-mesh/695568 "2022-11-21T06:56:15Z")

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Is there any process of importing a static mesh as combination of different meshes where each unique mesh has its own individual simple collisions?

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## [Load .fbx via Http Request](https://forums.unrealengine.com/t/load-fbx-via-http-request/658350)

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**Author:** [@melanieernst](https://forums.unrealengine.com/u/melanieernst)\
**Replies:** 1\
**Last updated:** [October 27, 2022, 6:39am UTC](https://forums.unrealengine.com/t/load-fbx-via-http-request/658350 "2022-10-27T06:39:33Z")

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Hi, I am trying to import an fbx file via an Http request, which means I just get some binary data from a server (getting the fbx as a string is also possible). Now my question: is it possible to import the fbx file wi…

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## [How to runtime load a FBX file with morph target?](https://forums.unrealengine.com/t/how-to-runtime-load-a-fbx-file-with-morph-target/581762)

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**Author:** [@guaidao4219](https://forums.unrealengine.com/u/guaidao4219)\
**Replies:** 0\
**Last updated:** [June 14, 2022, 3:03pm UTC](https://forums.unrealengine.com/t/how-to-runtime-load-a-fbx-file-with-morph-target/581762 "2022-06-14T15:03:36Z")

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I found some plugins that could load FBX at runtime. But just mesh data loaded. Has someone with morph target info?

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## [Destructible Mesh Chunk to Static Mesh conversion?](https://forums.unrealengine.com/t/destructible-mesh-chunk-to-static-mesh-conversion/361697)

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**Author:** [@anonymous\_user\_1fe45e8e1](https://forums.unrealengine.com/u/anonymous_user_1fe45e8e1)\
**Replies:** 4\
**Last updated:** [May 15, 2022, 5:52am UTC](https://forums.unrealengine.com/t/destructible-mesh-chunk-to-static-mesh-conversion/361697 "2022-05-15T05:52:35Z")

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Hey, Unreal Community! I’m currently working on a project with a fallen ancient civilization theme. We created the assets modular so we can build whatever we want directly in the engine. Since we are aiming for a low po…

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## [Why can i only see some parts of my mesh from a specific angle?](https://forums.unrealengine.com/t/why-can-i-only-see-some-parts-of-my-mesh-from-a-specific-angle/548689)

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**Author:** [@Fallerrr](https://forums.unrealengine.com/u/Fallerrr)\
**Replies:** 5\
**Last updated:** [May 4, 2022, 4:18pm UTC](https://forums.unrealengine.com/t/why-can-i-only-see-some-parts-of-my-mesh-from-a-specific-angle/548689 "2022-05-04T16:18:08Z")

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So most of the time when i try to import a model into unreal it gets bugged out and i can only see certain parts of the geometry from a certain angle. I saw another post about this and tried the solution and it didn’t wo…

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## [ConstructorHelpers and chunks](https://forums.unrealengine.com/t/constructorhelpers-and-chunks/490069)

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**Author:** [@TheS3raph](https://forums.unrealengine.com/u/TheS3raph)\
**Replies:** 1\
**Last updated:** [October 31, 2021, 2:00am UTC](https://forums.unrealengine.com/t/constructorhelpers-and-chunks/490069 "2021-10-31T02:00:39Z")

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Hello, I have been working on setting up Chunk Downloader and ran into an issue with my C+±found meshes, and the chunk assigned to them. My setup uses PrimaryAssetLabel for specifying the chunk which the meshes should …

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## [Can UDestructibleComponent make one chunk have no gravity?](https://forums.unrealengine.com/t/can-udestructiblecomponent-make-one-chunk-have-no-gravity/478079)

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**Author:** [@KARLMICAL](https://forums.unrealengine.com/u/KARLMICAL)\
**Replies:** 0\
**Last updated:** [February 1, 2021, 12:06pm UTC](https://forums.unrealengine.com/t/can-udestructiblecomponent-make-one-chunk-have-no-gravity/478079 "2021-02-01T12:06:19Z")

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When an UDestructibleComponent broke into peicies (chunks actually), if there is any way to make one chunk to float (make it has no gravity)? I try using SetEnableGravity, but it does not work, it seems to applied to th…

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## [HTTPChunkInstallerについて](https://forums.unrealengine.com/t/httpchunkinstaller/475595)

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**Author:** [@anonymous\_user\_d92c6122](https://forums.unrealengine.com/u/anonymous_user_d92c6122)\
**Replies:** 0\
**Last updated:** [December 10, 2020, 8:33pm UTC](https://forums.unrealengine.com/t/httpchunkinstaller/475595 "2020-12-10T20:33:39Z")

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UE4のPluginの「HTTPChunkInstaller」についてなのですが、こちらを使用してみたいのですが、 実行時に「Master.manifest」というファイルをHTTPChunkInstaller.cppの300行あたりでファイルサーバーから DLして使用しようとしているように見受けられるのですが、ファイルサーバーに配置するためのDLCコンテンツを「ProjectLauncher」を使用して作成しても自動では「Mast…

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## [How to manage Material good?](https://forums.unrealengine.com/t/how-to-manage-material-good/462551)

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**Author:** [@LOST\_Singulativ](https://forums.unrealengine.com/u/LOST_Singulativ)\
**Replies:** 0\
**Last updated:** [March 17, 2020, 8:02pm UTC](https://forums.unrealengine.com/t/how-to-manage-material-good/462551 "2020-03-17T20:02:40Z")

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Hello, recently I created a Minecraft like Game with chunk generation and so on. I use for each Material its own Mesh Section and want to apply a material to it. The Chunk are only generated in the game. So I cannot get…

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## [Texture painting for landscape doesnt work properly](https://forums.unrealengine.com/t/texture-painting-for-landscape-doesnt-work-properly/422607)

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**Author:** [@DE4Dkiller616\_MC](https://forums.unrealengine.com/u/DE4Dkiller616_MC)\
**Replies:** 0\
**Last updated:** [April 14, 2018, 10:36am UTC](https://forums.unrealengine.com/t/texture-painting-for-landscape-doesnt-work-properly/422607 "2018-04-14T10:36:41Z")

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Hi, i was using a material with many layer to texture paint my terrain, but after a while i noticed that all but one single chunk of the terrain loaded the textures. I have been painting different chunks with patches of …

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## [How to import Dynamic Destruction Chunks from Houdini with correct normals and material slots](https://forums.unrealengine.com/t/how-to-import-dynamic-destruction-chunks-from-houdini-with-correct-normals-and-material-slots/421830)

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**Author:** [@anonymous\_user\_96613a93](https://forums.unrealengine.com/u/anonymous_user_96613a93)\
**Replies:** 0\
**Last updated:** [April 4, 2018, 6:51pm UTC](https://forums.unrealengine.com/t/how-to-import-dynamic-destruction-chunks-from-houdini-with-correct-normals-and-material-slots/421830 "2018-04-04T18:51:49Z")

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Hi, I’m creating fractured meshes in Houdini that I’d like to use as Dynamic Destruction Mesh chunks. Unfortunately, I have two big problems I need to overcome. The first is that the normals don’t show up correctly whe…

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## [httpchunkinstaller localisation ini points to wrong folder](https://forums.unrealengine.com/t/httpchunkinstaller-localisation-ini-points-to-wrong-folder/408366)

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**Author:** [@Ben.Driehuis](https://forums.unrealengine.com/u/Ben.Driehuis)\
**Replies:** 0\
**Last updated:** [October 31, 2017, 2:02am UTC](https://forums.unrealengine.com/t/httpchunkinstaller-localisation-ini-points-to-wrong-folder/408366 "2017-10-31T02:02:35Z")

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Hi there, The HTTPChunkInstaller.ini in Engine\\Plugins\\Runtime\\HTTPChunkInstaller\\Config\\Localization refers to its old folder ( Plugins\\Online) I imagine this will cause some issues in the generation of editor/engine …

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## [Is it possible to access a destructible chunk via Blueprint](https://forums.unrealengine.com/t/is-it-possible-to-access-a-destructible-chunk-via-blueprint/288618)

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**Author:** [@Jeremy\_Throckmorton\_1](https://forums.unrealengine.com/u/Jeremy_Throckmorton_1)\
**Replies:** 5\
**Last updated:** [September 9, 2016, 3:33am UTC](https://forums.unrealengine.com/t/is-it-possible-to-access-a-destructible-chunk-via-blueprint/288618 "2016-09-09T03:33:30Z")

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Is it possible to access or reference a particular chunk in a destructible mesh via blueprints?

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## [DestructibleMesh - Do Not Fracture doesn't work?](https://forums.unrealengine.com/t/destructiblemesh-do-not-fracture-doesnt-work/338173)

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**Author:** [@Juice-Tin](https://forums.unrealengine.com/u/Juice-Tin)\
**Replies:** 2\
**Last updated:** [November 13, 2015, 11:46pm UTC](https://forums.unrealengine.com/t/destructiblemesh-do-not-fracture-doesnt-work/338173 "2015-11-13T23:46:00Z")

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Simply put, the ‘Do not fracture’ doesn’t work on the chunks. I have icicles that you can break, and I want the base piece to stay stuck in the wall while the rest breaks off. No matter what I do, the entire piece of ic…

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