# \[CRITICAL\] Cannot update my map with private versions made after 38.00 **URL:** \ **Category:** Issues and Bug Reporting\ **Tags:** fortnite-creative, unreal-editor-for-fortnite, fixed, fortnite\ **Created:** [November 7, 2025, 5:40pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739 "2025-11-07T17:40:07Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![giovauefn](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/giovauefn/32/1211471_2.png) [@giovauefn](https://forums.unrealengine.com/u/giovauefn)\ **Post date:** [November 7, 2025, 5:40pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/1 "2025-11-07T17:40:07Z")
### Summary I cannot update my map Backrooms Roguelike using private versions created after 38.00. When trying to publish, the verse persistence check throws the error below. My code doesn’t have any reference to that UI module anymore, as shown in the second picture. My code doesn’t have that error anymore. I changed my folder structure names completely, and there’s no track of a UI module that would go in conflict with the [Verse.org/SceneGraph/UI](http://Verse.org/SceneGraph/UI) module. There is a very odd coincidence with how URC is working in my project, I will add many details about this below, but I’m not sure the two things are correlated. ### Please select what you are reporting on: Verse ### What Type of Bug are you experiencing? Publishing ### Steps to Reproduce This problem likely can’t be reproduced with a new project. ### Expected Result The project can be published as I don’t have that error anymore. ### Observed Result The project can’t be published. ### Platform(s) windows ### Island Code 1316-2698-6957 ### Upload an image ![Screenshot 2025-11-07 000632.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/e/c/2/ec2ae8cc8185335729b4c377a5a5233c59160726.png) ![Screenshot 2025-11-07 170940.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/b/7/3/b73e6a65c5c6e5692fd4cfd0e6cd692f353eccaf.png) ### Additional Notes I will provide more details about this whole thing in the replies. ---
**Author:** ![AtAshTag](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/atashtag/32/997253_2.png) [@AtAshTag](https://forums.unrealengine.com/u/AtAshTag)\ **Post date:** [November 7, 2025, 5:43pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/2 "2025-11-07T17:43:16Z")
Did you update the redirectors ? When i rename a folder itll create a new one with the name then i right click on the top project name folder and update redirectors then delete the og folder. Not saying this is the issue but try this I think it keeps refs in the redirectors to the og folder name could be the issue Not sure how they work with the asset digest but try anyways ---
**Author:** ![Bizanator](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/bizanator/32/1022240_2.png) [@Bizanator](https://forums.unrealengine.com/u/Bizanator)\ **Post date:** [November 7, 2025, 6:09pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/4 "2025-11-07T18:09:13Z")
Any luck on this? I’m having the same issue with the Ambiguous identifier problem, rolling the file back, fixing the identifier (even though compiler doesn’t flag it) and even deleting the verse file entirely is not solving it. I have a detailed report on it here - [Failing Verse Persistence after 38.0 for Ambiguous identifier even after fixing or fully removing file - Unable to publish update! - General / Issues and Bug Reporting - Epic Developer Community Forums](https://forums.unrealengine.com/t/failing-verse-persistence-after-38-0-for-ambiguous-identifier-even-after-fixing-or-fully-removing-file-unable-to-publish-update/2672699) ---
**Author:** ![giovauefn](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/giovauefn/32/1211471_2.png) [@giovauefn](https://forums.unrealengine.com/u/giovauefn)\ **Post date:** [November 7, 2025, 6:12pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/5 "2025-11-07T18:12:47Z")
URC also seems to be bugged in my project. In my local copy of the project, I can see all snapshots, including URC2 snapshots. But if I sync the project to the latest snapshot on a different pc (so a fresh/clean sync) it syncs the project to the last URC1 snapshot, which is Snapshot 122. (I’m now at snapshot 1320 with URC2), and I can’t see URC2 snapshots at all. I wanted to try to sync a fresh copy in a different pc, so maybe it could’ve fixed the publishing issue. I’m including this as an additional detail. Not sure if it can be helpful. ---
**Author:** ![giovauefn](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/giovauefn/32/1211471_2.png) [@giovauefn](https://forums.unrealengine.com/u/giovauefn)\ **Post date:** [November 7, 2025, 6:14pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/6 "2025-11-07T18:14:50Z")
We probably have the same issue. I spoke to @Flak and she said to make a forum bug report on this, so hopefully this will help Epic devs fix this issue. Let’s just provide as many details as we can and hope🤞 ---
**Author:** ![Flak](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/flak/32/769441_2.png) [@Flak](https://forums.unrealengine.com/u/Flak)\ **Post date:** [November 7, 2025, 7:26pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/7 "2025-11-07T19:26:47Z")
Could we get your logs @giovauefn? > [@How to get your Fortnite logs](https://forums.unrealengine.com/t/how-to-get-your-fortnite-logs/682382): > > At times, we will ask you to send us your logs when you’re having an issue in UEFN. Here is how to do that: UEFN Logs Exit Fortnite. Click on Start or press the Windows Key + R. Type \AppData\Local\UnrealEditorFortnite\Saved\Logs and press Enter. Zip your Logs folder and attach the zip file to your reply. To find UEFN Logs while working in UEFN: Click “Output Log” at the bottom of the window. Click on “Setting” at the top right of the window Click “Open Source Location” Zip your Logs folder… ---
**Author:** ![Bizanator](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/bizanator/32/1022240_2.png) [@Bizanator](https://forums.unrealengine.com/u/Bizanator)\ **Post date:** [November 7, 2025, 7:27pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/8 "2025-11-07T19:27:14Z")
Yeah I stopped using URC a little over a year ago due to issues with restore and snapshots. I’m using Perforce and I don’t think this issue is client side however as I’ve tested different accounts, different machines, fixing the file, deleting the file, changing the line number as to where the issue would be and everything points to Nomad (the cook service) caching the verse code and not refreshing. Hopefully theres a way to flush it… ---
**Author:** ![giovauefn](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/giovauefn/32/1211471_2.png) [@giovauefn](https://forums.unrealengine.com/u/giovauefn)\ **Post date:** [November 7, 2025, 7:43pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/9 "2025-11-07T19:43:48Z")
I’m getting this error while trying to upload them ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/3/e/b/3ebb5e072e43e902ab62a6dce00654071832bed6.png) Can I send them to you on Discord? @Flak ---
**Author:** ![Flak](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/flak/32/769441_2.png) [@Flak](https://forums.unrealengine.com/u/Flak)\ **Post date:** [November 7, 2025, 7:47pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/10 "2025-11-07T19:47:20Z")
Yes please and thank you! ---
**Author:** ![giovauefn](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/giovauefn/32/1211471_2.png) [@giovauefn](https://forums.unrealengine.com/u/giovauefn)\ **Post date:** [November 7, 2025, 7:50pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/11 "2025-11-07T19:50:54Z")
Sending! ---
**Author:** ![giovauefn](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/giovauefn/32/1211471_2.png) [@giovauefn](https://forums.unrealengine.com/u/giovauefn)\ **Post date:** [November 7, 2025, 8:51pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/12 "2025-11-07T20:51:45Z")
Yeah there’s a condition that probably doesn’t update the cached code, as my error was never there since it started happening after 38.00, I fixed it way before than 38.00. Also, old versions work, I’ve sent a version made before 38.00 and it passed the persistence check ---
**Author:** ![sonictke](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/sonictke/32/924209_2.png) [@sonictke](https://forums.unrealengine.com/u/sonictke)\ **Post date:** [November 7, 2025, 10:42pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/13 "2025-11-07T22:42:12Z")
Hi folks: we’ve identified a regression here in our backwards compatibility checker that is giving these false positives that are preventing you from publishing. We have a solution that we’re working on trying to deploy. Please bear with me. ---
**Author:** ![giovauefn](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/giovauefn/32/1211471_2.png) [@giovauefn](https://forums.unrealengine.com/u/giovauefn)\ **Post date:** [November 7, 2025, 10:54pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/14 "2025-11-07T22:54:28Z")
Great news! Thank you so much! ---
**Author:** ![BrokenOutlander](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/brokenoutlander/32/924631_2.png) [@BrokenOutlander](https://forums.unrealengine.com/u/BrokenOutlander)\ **Post date:** [November 8, 2025, 10:23pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/15 "2025-11-08T22:23:26Z")
I also am unable to publish (for over 3 months) due to ambiguous identifier in my published version. ![PersistenceError](https://d3kjluh73b9h9o.cloudfront.net/original/4X/3/6/5/3658a29c52871b485fcb9a2d6d3ab2aae9adc70b.png) > [@Verse Persistence failing over Scene Graph component](https://forums.unrealengine.com/t/verse-persistence-failing-over-scene-graph-component/2614114): > > Summary Verse Persistence compatibility check on publishing is failing because of an ambiguous identifier in the already published version. The verse compiler did not catch an issue and let me publish, and upon updating there is now a problem that I seemingly have no control over. Please select what you are reporting on: Unreal Editor for Fortnite What Type of Bug are you experiencing? Publishing Steps to Reproduce The published scene graph component has lines using { /Verse.org} using { /Un… Here’s to hoping for a fix! ---
**Author:** ![giovauefn](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/giovauefn/32/1211471_2.png) [@giovauefn](https://forums.unrealengine.com/u/giovauefn)\ **Post date:** [November 10, 2025, 11:25am UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/16 "2025-11-10T11:25:24Z")
Are there any updates on this? 🙂 ---
**Author:** ![Bizanator](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/bizanator/32/1022240_2.png) [@Bizanator](https://forums.unrealengine.com/u/Bizanator)\ **Post date:** [November 10, 2025, 2:10pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/17 "2025-11-10T14:10:58Z")
Standing by for testing of said fix 🤞 ---
**Author:** ![Bizanator](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/bizanator/32/1022240_2.png) [@Bizanator](https://forums.unrealengine.com/u/Bizanator)\ **Post date:** [November 11, 2025, 6:43pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/18 "2025-11-11T18:43:55Z")
Check it again today as of 38.10 and the validation is still failing with a cached file, this file doesn’t even exist in our project anymore. **6595-3754-3721** ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/6/c/0/6c0aa77b621f1df29ee7ed3db0abece1f33ed450.jpeg) ---
**Author:** ![giovauefn](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/giovauefn/32/1211471_2.png) [@giovauefn](https://forums.unrealengine.com/u/giovauefn)\ **Post date:** [November 11, 2025, 7:49pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/19 "2025-11-11T19:49:17Z")
Yep can confirm the issue still persist. @sonictke any updates on this? ---
**Author:** ![Rustamovi4](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Rustamovi4](https://forums.unrealengine.com/u/Rustamovi4)\ **Post date:** [November 12, 2025, 11:51pm UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/20 "2025-11-12T23:51:46Z")
My island is still affected with this issue as well! ---
**Author:** ![giovauefn](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/giovauefn/32/1211471_2.png) [@giovauefn](https://forums.unrealengine.com/u/giovauefn)\ **Post date:** [November 13, 2025, 12:38am UTC](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739/21 "2025-11-13T00:38:26Z")
This guy has the same issue as well: [[CRITICAL] After 38.00, it is not possible to launch the project - #25 by RickF1234](https://forums.unrealengine.com/t/critical-after-38-00-it-is-not-possible-to-launch-the-project/2670930/25) [Next page](https://forums.unrealengine.com/t/critical-cannot-update-my-map-with-private-versions-made-after-38-00/2672739.md?page=2)