# \#umap

**URL:** https://forums.unrealengine.com/tag/umap/2518.md

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## [.umap files invisible in content browser](https://forums.unrealengine.com/t/umap-files-invisible-in-content-browser/416679)

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**Author:** [@Jananas125](https://forums.unrealengine.com/u/Jananas125)\
**Replies:** 8\
**Last updated:** [February 22, 2026, 4:52pm UTC](https://forums.unrealengine.com/t/umap-files-invisible-in-content-browser/416679 "2026-02-22T16:52:17Z")

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hey people, I was making a map and one day it just did not show up in the content browser anymore. So I’ve looked in my folders and it says it should be in my maps folder but it does not show anymore. Does anyone know h…

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## [My level file (.umap) exists in my project folder when I check through File Explorer, but it’s not showing up in the Content Browser inside Unreal Engine. How can I make it appear or recover it?](https://forums.unrealengine.com/t/my-level-file-umap-exists-in-my-project-folder-when-i-check-through-file-explorer-but-it-s-not-showing-up-in-the-content-browser-inside-unreal-engine-how-can-i-make-it-appear-or-recover-it/2660791)

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**Author:** [@KIRUBANANTHAN\_E](https://forums.unrealengine.com/u/KIRUBANANTHAN_E)\
**Replies:** 0\
**Last updated:** [September 29, 2025, 9:47am UTC](https://forums.unrealengine.com/t/my-level-file-umap-exists-in-my-project-folder-when-i-check-through-file-explorer-but-it-s-not-showing-up-in-the-content-browser-inside-unreal-engine-how-can-i-make-it-appear-or-recover-it/2660791 "2025-09-29T09:47:29Z")

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My level file (.umap) exists in my project folder when I check through File Explorer, but it’s not showing up in the Content Browser inside Unreal Engine. How can I make it appear or recover it?

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## [How to save my entire project in .umap file?](https://forums.unrealengine.com/t/how-to-save-my-entire-project-in-umap-file/1898255)

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**Author:** [@carol.alyga](https://forums.unrealengine.com/u/carol.alyga)\
**Replies:** 6\
**Last updated:** [June 11, 2024, 9:38pm UTC](https://forums.unrealengine.com/t/how-to-save-my-entire-project-in-umap-file/1898255 "2024-06-11T21:38:59Z")

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Hello! I need to save my project with mesh, animation and setting in a .umap file, so that when someone else downloads my file, they can see the entire result of what I produced. however, when I copy and paste the main o…

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## [Can't find umap in content after I replace the umap from autosave](https://forums.unrealengine.com/t/cant-find-umap-in-content-after-i-replace-the-umap-from-autosave/1819127)

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**Author:** [@badman72](https://forums.unrealengine.com/u/badman72)\
**Replies:** 0\
**Last updated:** [April 24, 2024, 1:55pm UTC](https://forums.unrealengine.com/t/cant-find-umap-in-content-after-i-replace-the-umap-from-autosave/1819127 "2024-04-24T13:55:10Z")

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Please help me. I have try many way to solve this problem but it doesn’t work for me. my umap file is broken accidently and then I copy the umap from autosave file but it will not show the umap level in my UE.

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## [UE5.3- Is there a max to how many levels I can have in my UE5 project?](https://forums.unrealengine.com/t/ue5-3-is-there-a-max-to-how-many-levels-i-can-have-in-my-ue5-project/1745311)

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**Author:** [@emmashay419](https://forums.unrealengine.com/u/emmashay419)\
**Replies:** 2\
**Last updated:** [March 11, 2024, 8:08pm UTC](https://forums.unrealengine.com/t/ue5-3-is-there-a-max-to-how-many-levels-i-can-have-in-my-ue5-project/1745311 "2024-03-11T20:08:54Z")

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I was working in my project when I noticed I was missing a few levels I had in previous weeks. They completely disappeared, and when I counted the amount of levels I had in my “open level” editor- it was 30. Is 30 the ma…

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## [How to open .umap file?](https://forums.unrealengine.com/t/how-to-open-umap-file/324489)

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**Author:** [@Soham\_Deshpande](https://forums.unrealengine.com/u/Soham_Deshpande)\
**Replies:** 8\
**Last updated:** [August 8, 2023, 3:19am UTC](https://forums.unrealengine.com/t/how-to-open-umap-file/324489 "2023-08-08T03:19:44Z")

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Start the Editor File → Open Level and select your \*.umap file. (Copy the map in the Content Folder \[subfolder Maps\] of your project)

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## [UMAP won't load in editor](https://forums.unrealengine.com/t/umap-wont-load-in-editor/1221051)

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**Author:** [@drewjohnson71](https://forums.unrealengine.com/u/drewjohnson71)\
**Replies:** 0\
**Last updated:** [July 6, 2023, 8:07am UTC](https://forums.unrealengine.com/t/umap-wont-load-in-editor/1221051 "2023-07-06T08:07:17Z")

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I have a UMAP in the file explorer, but it won’t show up in the Content Browser in Unreal Engine. For some background, my current project got deleted… the project file but I had all the content, so I created a new projec…

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## [Unreal endine 4.26.1 dont see my umap file](https://forums.unrealengine.com/t/unreal-endine-4-26-1-dont-see-my-umap-file/480646)

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**Author:** [@ominion1](https://forums.unrealengine.com/u/ominion1)\
**Replies:** 23\
**Last updated:** [May 24, 2023, 4:21am UTC](https://forums.unrealengine.com/t/unreal-endine-4-26-1-dont-see-my-umap-file/480646 "2023-05-24T04:21:16Z")

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Hi my unreal endine 4.26.1 dont see my umap file i dont upgrade any version I don’t move it I turned off ue4 in the evening and in the morning not work

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## [4.17 - umap failed to save](https://forums.unrealengine.com/t/4-17-umap-failed-to-save/402211)

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**Author:** [@Flash7](https://forums.unrealengine.com/u/Flash7)\
**Replies:** 23\
**Last updated:** [March 13, 2023, 3:34pm UTC](https://forums.unrealengine.com/t/4-17-umap-failed-to-save/402211 "2023-03-13T15:34:58Z")

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Since I moved to 4.17.1 from 4.16.3, most of the time when I save a map, I get this error: I press “Continue” and it keeps saving. I tried on empty projects, empty maps - the same result.

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## [Unknown extention ".umap"](https://forums.unrealengine.com/t/unknown-extention-umap/478393)

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**Author:** [@venomtail](https://forums.unrealengine.com/u/venomtail)\
**Replies:** 2\
**Last updated:** [February 13, 2022, 3:17pm UTC](https://forums.unrealengine.com/t/unknown-extention-umap/478393 "2022-02-13T15:17:00Z")

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I needed to rename my map and after I did, it has dissapeared from my content browser however it is still in my file explorer. I have tried importing even dragging and dropping the file into content browser but all I get…

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## [.umap failed to save](https://forums.unrealengine.com/t/umap-failed-to-save/405421)

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**Author:** [@Kuuwahi](https://forums.unrealengine.com/u/Kuuwahi)\
**Replies:** 1\
**Last updated:** [October 28, 2021, 3:45am UTC](https://forums.unrealengine.com/t/umap-failed-to-save/405421 "2021-10-28T03:45:27Z")

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I keep getting the following error, specially when the Project auto saves. I only have 1 instance of UE4 Open, and I have tried making a new map, but it seems to have happened again. The asset ‘/Game/GameName/Maps/Test…

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## [Can I repair a .umap file?](https://forums.unrealengine.com/t/can-i-repair-a-umap-file/489600)

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**Author:** [@Artur\_Borzow\_1](https://forums.unrealengine.com/u/Artur_Borzow_1)\
**Replies:** 0\
**Last updated:** [October 6, 2021, 4:45pm UTC](https://forums.unrealengine.com/t/can-i-repair-a-umap-file/489600 "2021-10-06T16:45:06Z")

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Can I repair a .umap file? My electricity was turned off and the file with the map no longer opens. There is only a very old map in the autosave folder.

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## [Unknown extension 'Umap'](https://forums.unrealengine.com/t/unknown-extension-umap/481066)

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**Author:** [@78rye](https://forums.unrealengine.com/u/78rye)\
**Replies:** 0\
**Last updated:** [March 29, 2021, 6:58pm UTC](https://forums.unrealengine.com/t/unknown-extension-umap/481066 "2021-03-29T18:58:19Z")

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Umap will not open. I have seen other posts about this but why is there never a clear answer? I was working on my project this morning. saved it, came back an hour later and now it won’t open my project. When I go to th…

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## [Cant open UMAP when opening uproject](https://forums.unrealengine.com/t/cant-open-umap-when-opening-uproject/330926)

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**Author:** [@Danart21\_1](https://forums.unrealengine.com/u/Danart21_1)\
**Replies:** 5\
**Last updated:** [January 21, 2021, 7:02am UTC](https://forums.unrealengine.com/t/cant-open-umap-when-opening-uproject/330926 "2021-01-21T07:02:30Z")

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Hi, I get an pop message when opening my uproject. The map is gone I only get a black screen and my level design is missing. This is what the pop-up window says, while openin/loading uproject: Failed to load map! G:/…

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## [How to fix UMAP textured red](https://forums.unrealengine.com/t/how-to-fix-umap-textured-red/472987)

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**Author:** [@anonymous\_user\_c72861a21](https://forums.unrealengine.com/u/anonymous_user_c72861a21)\
**Replies:** 0\
**Last updated:** [October 16, 2020, 3:18am UTC](https://forums.unrealengine.com/t/how-to-fix-umap-textured-red/472987 "2020-10-16T03:18:35Z")

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When I view the texture UMAP, it is all red. Any way to fix this?

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## [.umap file appears to be an asset](https://forums.unrealengine.com/t/umap-file-appears-to-be-an-asset/290082)

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**Author:** [@The\_Scanner\_Darkly](https://forums.unrealengine.com/u/The_Scanner_Darkly)\
**Replies:** 17\
**Last updated:** [June 16, 2020, 3:08am UTC](https://forums.unrealengine.com/t/umap-file-appears-to-be-an-asset/290082 "2020-06-16T03:08:26Z")

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UE4 recently crashed shortly after finishing building the lighting in the map, and after re-opening the project and attempting to open said map a message pops up saying “…/…/…/…/…/MaliceTestPlatform/Content/Maps/DesertSa…

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## [How to load level from plugin?](https://forums.unrealengine.com/t/how-to-load-level-from-plugin/464216)

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**Author:** [@CryptAlchemy](https://forums.unrealengine.com/u/CryptAlchemy)\
**Replies:** 0\
**Last updated:** [April 25, 2020, 5:38am UTC](https://forums.unrealengine.com/t/how-to-load-level-from-plugin/464216 "2020-04-25T05:38:30Z")

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I’m adding mod support to my game (http://www.tomlooman.com/add-mod-support-to-your-unreal-engine-4-game/). How to load level from a mod (plugin)?

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## [Is there any specifications to how UMap data is processed in UE4?](https://forums.unrealengine.com/t/is-there-any-specifications-to-how-umap-data-is-processed-in-ue4/458589)

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**Author:** [@MultiTrackDrifto](https://forums.unrealengine.com/u/MultiTrackDrifto)\
**Replies:** 0\
**Last updated:** [November 19, 2019, 7:58am UTC](https://forums.unrealengine.com/t/is-there-any-specifications-to-how-umap-data-is-processed-in-ue4/458589 "2019-11-19T07:58:25Z")

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So a bit of an explanation is in order here… I plan to write a fully custom terrain streamer and object database for scenes within Unreal Engine. While I know some form level streaming already exists in UE4, my very spe…

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## [Maps (.umap) are not appearing in Content Browser](https://forums.unrealengine.com/t/maps-umap-are-not-appearing-in-content-browser/457805)

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**Author:** [@anonymous\_user\_f2498077](https://forums.unrealengine.com/u/anonymous_user_f2498077)\
**Replies:** 1\
**Last updated:** [October 31, 2019, 2:06pm UTC](https://forums.unrealengine.com/t/maps-umap-are-not-appearing-in-content-browser/457805 "2019-10-31T14:06:51Z")

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Today when I opened UE some of my maps have seemingly disappeared from the content browser, despite no changes occurring. I’ve read through a dozen other questions on the answers hub of people reporting the same issue, …

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## [Files Not Appearing In Asset Panel](https://forums.unrealengine.com/t/files-not-appearing-in-asset-panel/451402)

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**Author:** [@OmegaGD](https://forums.unrealengine.com/u/OmegaGD)\
**Replies:** 0\
**Last updated:** [June 28, 2019, 3:24pm UTC](https://forums.unrealengine.com/t/files-not-appearing-in-asset-panel/451402 "2019-06-28T15:24:59Z")

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I recently was sent a .pak file from a friend. I made sure I had the correct version (4.21) and opened the files in UModel to export them. However, UModel can’t export .umap files, so I had to save the files as .uasset a…

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## [Editor hangs while saving .umap](https://forums.unrealengine.com/t/editor-hangs-while-saving-umap/448625)

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**Author:** [@Pyha\_Paavali](https://forums.unrealengine.com/u/Pyha_Paavali)\
**Replies:** 3\
**Last updated:** [May 9, 2019, 12:13pm UTC](https://forums.unrealengine.com/t/editor-hangs-while-saving-umap/448625 "2019-05-09T12:13:04Z")

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Greetings. Our project was recently updated to 4.22. Since then we are experiencing frequent hangups when saving .umap files. Progress hangs exactly at 25% while saving the .umap we are working on. The problem is presen…

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## [Git Umap is not the same even on same commit](https://forums.unrealengine.com/t/git-umap-is-not-the-same-even-on-same-commit/444439)

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**Author:** [@shejan0](https://forums.unrealengine.com/u/shejan0)\
**Replies:** 0\
**Last updated:** [March 2, 2019, 2:17am UTC](https://forums.unrealengine.com/t/git-umap-is-not-the-same-even-on-same-commit/444439 "2019-03-02T02:17:57Z")

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Hello UE4 AnswerHub, I have been trying to work on a UE4 project between 2 computers with Git as the Revision Control. When i save my files, commit, and push them through external software. On the other machine, it doe…

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## [Why did my hours of wasted time downloading applications trying to open .UMAP files yield nothing?](https://forums.unrealengine.com/t/why-did-my-hours-of-wasted-time-downloading-applications-trying-to-open-umap-files-yield-nothing/440016)

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**Author:** [@anonymous\_user\_8e10a16d](https://forums.unrealengine.com/u/anonymous_user_8e10a16d)\
**Replies:** 2\
**Last updated:** [December 24, 2018, 6:05am UTC](https://forums.unrealengine.com/t/why-did-my-hours-of-wasted-time-downloading-applications-trying-to-open-umap-files-yield-nothing/440016 "2018-12-24T06:05:25Z")

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inhale exhale inhaleI JUST WASTED HOURS OF TIME TRYING TO DOWNLOAD STUFF THAT CAN ACTUALLY OPEN UMODEL EXTRACTED UMAP FILES!!!111!!11!1!!!11!!1!!!11!!1!!!11!!!1!!!1!!!1!! I, just, spent hours and a few days downloadi…

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## [How to tag umap(s) with AssetRegistrySearchable?](https://forums.unrealengine.com/t/how-to-tag-umap-s-with-assetregistrysearchable/318193)

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**Author:** [@undercover](https://forums.unrealengine.com/u/undercover)\
**Replies:** 7\
**Last updated:** [December 12, 2018, 9:19am UTC](https://forums.unrealengine.com/t/how-to-tag-umap-s-with-assetregistrysearchable/318193 "2018-12-12T09:19:57Z")

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Hi! I have some different maps that the player should be able to choose from. All the maps can have different settings that must be known to display accurate information to the user before loading the maps into memory. …

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## [Renaming umap removes file from editor](https://forums.unrealengine.com/t/renaming-umap-removes-file-from-editor/436163)

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**Author:** [@anonymous\_user\_19cdb1f4](https://forums.unrealengine.com/u/anonymous_user_19cdb1f4)\
**Replies:** 4\
**Last updated:** [October 24, 2018, 8:09pm UTC](https://forums.unrealengine.com/t/renaming-umap-removes-file-from-editor/436163 "2018-10-24T20:09:46Z")

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Hey everyone. I’ve been working on a map for the past week and just got around to finishing it. When I tried to load the map with the open level node I ran into a conflict with another file (loading absolute to make it …

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## [Finding where a file is referenced in a \*.umap file?](https://forums.unrealengine.com/t/finding-where-a-file-is-referenced-in-a-umap-file/434173)

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**Author:** [@anonymous\_user\_df0f9775](https://forums.unrealengine.com/u/anonymous_user_df0f9775)\
**Replies:** 0\
**Last updated:** [September 21, 2018, 11:58am UTC](https://forums.unrealengine.com/t/finding-where-a-file-is-referenced-in-a-umap-file/434173 "2018-09-21T11:58:53Z")

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A file which no longer exists after uninstalling Houdini’s Plugin, HoudiniEngine/Tools/rock\_generator\_2038A8D542A8/rock\_generator\_2\_3\_0\_0\_0\_3\_0\_0\_0\_main\_geo\_838A912C, is being referenced from a umap file in my project. I…

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## [Can't transfer umap/content from artist's project to coder's project](https://forums.unrealengine.com/t/cant-transfer-umap-content-from-artists-project-to-coders-project/423402)

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**Author:** [@StarSignalAnthony](https://forums.unrealengine.com/u/StarSignalAnthony)\
**Replies:** 3\
**Last updated:** [April 23, 2018, 9:31pm UTC](https://forums.unrealengine.com/t/cant-transfer-umap-content-from-artists-project-to-coders-project/423402 "2018-04-23T21:31:41Z")

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I am trying to transfer 3D umaps from one uproject to another via github, but when I try to open the umaps in the new project the 3D mesh doesn’t appear. Why is that? Perhaps a crucial file is missing. What files are nec…

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## [Persistent map size increases when saved with sublevels loaded](https://forums.unrealengine.com/t/persistent-map-size-increases-when-saved-with-sublevels-loaded/415970)

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**Author:** [@all2one](https://forums.unrealengine.com/u/all2one)\
**Replies:** 0\
**Last updated:** [January 31, 2018, 12:28am UTC](https://forums.unrealengine.com/t/persistent-map-size-increases-when-saved-with-sublevels-loaded/415970 "2018-01-31T00:28:19Z")

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I have two questions. When I save my persistent level without sublevels loaded, it’s about 12MB. But it becomes 190MB if I save it with sublevels loaded. Why the difference? What’s the correct way to save? In both cas…

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## [Crash upon loading Landscape sublevel](https://forums.unrealengine.com/t/crash-upon-loading-landscape-sublevel/410580)

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**Author:** [@CaseFace5](https://forums.unrealengine.com/u/CaseFace5)\
**Replies:** 0\
**Last updated:** [November 25, 2017, 5:12pm UTC](https://forums.unrealengine.com/t/crash-upon-loading-landscape-sublevel/410580 "2017-11-25T17:12:28Z")

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Hello, I have been working on an ARK: Survival Evolved map for about 6 months now and yesterday after finishing up some volume work in my volume sublevel I saved all my levels and did a manual backup. then I had a lockup…

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## [Does anyone know a fix on the umap save eror](https://forums.unrealengine.com/t/does-anyone-know-a-fix-on-the-umap-save-eror/410031)

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**Author:** [@wisihe](https://forums.unrealengine.com/u/wisihe)\
**Replies:** 0\
**Last updated:** [November 19, 2017, 4:58pm UTC](https://forums.unrealengine.com/t/does-anyone-know-a-fix-on-the-umap-save-eror/410031 "2017-11-19T16:58:47Z")

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Hi, I’ve been getting this error message since 4.17, and now also in the 4.18.1 update. I’ve tried reinstalling the engine, my OS. created new projects, and it keeps coming back, i’ve also tried sharing my projects with …

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