# Can't publish or Launch Memory Calculation to update my already published island **URL:** \ **Category:** Issues and Bug Reporting\ **Tags:** closed, fortnite-creative, unreal-editor-for-fortnite, bug-report, editor, fortnite\ **Created:** [November 12, 2025, 9:00pm UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361 "2025-11-12T21:00:07Z")\ **Posts on this page:** 16\ **Page:** 2
**Author:** ![SiL3nT.Killa](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/sil3nt.killa/32/1168938_2.png) [@SiL3nT.Killa](https://forums.unrealengine.com/u/SiL3nT.Killa)\ **Post date:** [November 20, 2025, 12:40am UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/24 "2025-11-20T00:40:49Z")
Let others know if this helped. I know how it feels, trust me! šŸ˜“ ---
**Author:** ![LuckyCyril](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/luckycyril/32/1123196_2.png) [@LuckyCyril](https://forums.unrealengine.com/u/LuckyCyril)\ **Post date:** [November 20, 2025, 3:09am UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/25 "2025-11-20T03:09:58Z")
Thanks man, i did try it and same error for my two mapsā€¦ Iā€™m glad it works for you! ---
**Author:** ![Peeper1235](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Peeper1235](https://forums.unrealengine.com/u/Peeper1235)\ **Post date:** [November 21, 2025, 3:20am UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/26 "2025-11-21T03:20:33Z")
I have already tried this, and it did not seem to change anything. This is a screenshot of what I have currently. I cannot seem to set the first setting to none. ![Capture22222](https://d3kjluh73b9h9o.cloudfront.net/original/4X/5/9/5/595382c1ed70cc59efafb6808d18f1acabe9f874.png) ---
**Author:** ![User-783a16f222](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@User-783a16f222](https://forums.unrealengine.com/u/User-783a16f222)\ **Post date:** [November 21, 2025, 8:54am UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/27 "2025-11-21T08:54:00Z")
You have to click on the arrow. Its to the right of the Native Language/drop down. ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/9/d/d/9dd4c880e35b842c2e96bdc326a92962cc581331.png) ---
**Author:** ![User-783a16f222](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@User-783a16f222](https://forums.unrealengine.com/u/User-783a16f222)\ **Post date:** [November 21, 2025, 9:10am UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/28 "2025-11-21T09:10:16Z")
Yo this worked for me but I did two things. Thank you! 1. Reset my native Languages 2. verify files However I think it was verifying files that worked because after I did that memory calculations completed. Thanks. Btw hereā€™s a link on how to verify files if someone doesnā€™t know. > **[How do I verify game files in the Epic Games Launcher? - Epic Games Store...](https://www.epicgames.com/help/en-US/c-202300000001639/c-202300000001735/how-do-i-verify-game-files-in-the-epic-games-launcher-a202300000017217)** > > Verifying the integrity of your game files will check the files on your computer to ensure they are not damaged or corrupted. If some files ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/a/1/e/a1ecf0daf68c2e66d723c0bba14340068905ab1b.jpeg) ---
**Author:** ![LuckyCyril](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/luckycyril/32/1123196_2.png) [@LuckyCyril](https://forums.unrealengine.com/u/LuckyCyril)\ **Post date:** [November 21, 2025, 9:43pm UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/29 "2025-11-21T21:43:14Z")
Hey Everyone, so i was able to publish both my islands. Step to reproduce: Open your project Remove all languages in Project settings, and even the native language, someone posted earlier how to make sure you have ā€œNONEā€ Close UEFN Open Epic Launcher and Verify your file (takes like 3-5 min) Open UEFN and Open your project Launch a session and you should be able to calculate memory and Publish your map. Good luck everyone! ---
**Author:** ![VillainGames](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/villaingames/32/1121785_2.png) [@VillainGames](https://forums.unrealengine.com/u/VillainGames)\ **Post date:** [November 21, 2025, 10:37pm UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/30 "2025-11-21T22:37:49Z")
thanks for posting, Iā€™m doing those steps right now and will update when i find out if that works UPDATE; i can confirm that absolutely worked ---
**Author:** ![AGuyCalledRevive](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@AGuyCalledRevive](https://forums.unrealengine.com/u/AGuyCalledRevive)\ **Post date:** [November 22, 2025, 4:41pm UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/31 "2025-11-22T16:41:28Z")
Still unable to lauch memory calculation after doing all the steps ---
**Author:** ![SynDexTV\_YouTube](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/syndextv_youtube/32/1200766_2.png) [@SynDexTV\_YouTube](https://forums.unrealengine.com/u/SynDexTV_YouTube)\ **Post date:** [November 24, 2025, 3:06pm UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/32 "2025-11-24T15:06:11Z")
I have the same problem ---
**Author:** ![SynDexTV\_YouTube](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/syndextv_youtube/32/1200766_2.png) [@SynDexTV\_YouTube](https://forums.unrealengine.com/u/SynDexTV_YouTube)\ **Post date:** [November 24, 2025, 3:11pm UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/33 "2025-11-24T15:11:08Z")
Anyone can help me fix the problem i have do all steps but dosnt work .\_. ---
**Author:** ![SiL3nT.Killa](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/sil3nt.killa/32/1168938_2.png) [@SiL3nT.Killa](https://forums.unrealengine.com/u/SiL3nT.Killa)\ **Post date:** [November 25, 2025, 3:23am UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/34 "2025-11-25T03:23:54Z")
Still having the same issue @Flak ---
**Author:** ![utyuusen](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/utyuusen/32/1124452_2.png) [@utyuusen](https://forums.unrealengine.com/u/utyuusen)\ **Post date:** [November 26, 2025, 5:20am UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/35 "2025-11-26T05:20:41Z")
I deleted all files in this folder and resolved my issue. C:\Users\Administrator\AppData\Local\UnrealEngine ---
**Author:** ![AKTIVE.GG](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@AKTIVE.GG](https://forums.unrealengine.com/u/AKTIVE.GG)\ **Post date:** [December 1, 2025, 4:02am UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/36 "2025-12-01T04:02:36Z")
Found a Solution that worked, I create a copy of my game and create a new folder in my C:/ folder, then when i opened it, i opened the new one and it worked right away ---
**Author:** ![Bug-Reporter](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/bug-reporter/32/997076_2.png) [@Bug-Reporter](https://forums.unrealengine.com/u/Bug-Reporter)\ **Post date:** [December 3, 2025, 9:32pm UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/37 "2025-12-03T21:32:24Z")
FORT-1016365 has been ā€˜Closedā€™ as a duplicate of an existing known issue. Origin Issue: FORT-1018111, Origin Topic: [UEFN MEMORY CALCULATION ERROR](https://forums.unrealengine.com/t/uefn-memory-calculation-error/2674671) ---
**Author:** ![Peeper1235](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Peeper1235](https://forums.unrealengine.com/u/Peeper1235)\ **Post date:** [January 24, 2026, 4:36pm UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/38 "2026-01-24T16:36:39Z")
I figured it out for me and I made a YouTube video on it: [https://youtu.be/ZWwUCFY09GQ](https://youtu.be/ZWwUCFY09GQ) ---
**Author:** ![system](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/1/3/713c9d3f58553f0de89543d76a8a3a2779dc9fa4.png) [@system](https://forums.unrealengine.com/u/system)\ **Post date:** [May 11, 2026, 9:00pm UTC](https://forums.unrealengine.com/t/cant-publish-or-launch-memory-calculation-to-update-my-already-published-island/2674361/39 "2026-05-11T21:00:26Z")
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