# 34.20 update 0n UK 01/04/25 at 20:25 GMT Crashed UEFN 5.6 and now needs repair - added extra posts to fix this **URL:** \ **Category:** Issues and Bug Reporting\ **Tags:** unreal-engine, fortnite-creative, unreal-editor-for-fortnite, fortnite\ **Created:** [April 1, 2025, 7:50pm UTC](https://forums.unrealengine.com/t/34-20-update-0n-uk-01-04-25-at-20-25-gmt-crashed-uefn-5-6-and-now-needs-repair-added-extra-posts-to-fix-this/2435043 "2025-04-01T19:50:37Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Jimbohalo10](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jimbohalo10/32/961440_2.png) [@Jimbohalo10](https://forums.unrealengine.com/u/Jimbohalo10)\ **Post date:** [April 1, 2025, 7:50pm UTC](https://forums.unrealengine.com/t/34-20-update-0n-uk-01-04-25-at-20-25-gmt-crashed-uefn-5-6-and-now-needs-repair-added-extra-posts-to-fix-this/2435043/1 "2025-04-01T19:50:37Z")
### Summary The Epic Launcher 18.1 was updated at 18:00 GMT 01/04/25, USA 04/01/25. The update crashed the UEFN installation on launch. ### Please select what you are reporting on: Creative ### What Type of Bug are you experiencing? Stability ### Steps to Reproduce 1 Automatically Update Epic Games Launcher to 18,1.\* 2. Fortnite Games updates, launches and FINISHES correctly, UEFN does NOT update 3. Open Fortnite, and this works 4. Close Fortnite 5. Open UEFN, and there is an immediate crash ### Expected Result UEFN starts and does not crash ### Observed Result The UEFN crash appears on screen ### Platform(s) Windows 11 ### Additional Notes Check out the post below for the fix ---
**Author:** ![Jimbohalo10](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jimbohalo10/32/961440_2.png) [@Jimbohalo10](https://forums.unrealengine.com/u/Jimbohalo10)\ **Post date:** [April 1, 2025, 7:56pm UTC](https://forums.unrealengine.com/t/34-20-update-0n-uk-01-04-25-at-20-25-gmt-crashed-uefn-5-6-and-now-needs-repair-added-extra-posts-to-fix-this/2435043/2 "2025-04-01T19:56:33Z")
Hi this is the fix sis part of the left side of Epic Games Launcher screenshot. ![UEFN Update3420](https://d3kjluh73b9h9o.cloudfront.net/original/4X/b/d/d/bdd7a4de57e941e4f204b9b3b971adf76f3d859d.png) Then [VERIFY your UEFN/Fortnite installation](https://forums.unrealengine.com/t/urc-exe-and-urc-dll-get-flagged-as-malware-from-microsoft-defender/1802519/5) ---
**Author:** ![system](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/1/3/713c9d3f58553f0de89543d76a8a3a2779dc9fa4.png) [@system](https://forums.unrealengine.com/u/system)\ **Post date:** [September 28, 2025, 7:50pm UTC](https://forums.unrealengine.com/t/34-20-update-0n-uk-01-04-25-at-20-25-gmt-crashed-uefn-5-6-and-now-needs-repair-added-extra-posts-to-fix-this/2435043/3 "2025-09-28T19:50:44Z")
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