# Blocker - UEFN unable to Launch Session as of latest update

**URL:** <https://forums.unrealengine.com/t/blocker-uefn-unable-to-launch-session-as-of-latest-update/1979497>\
**Category:** Issues and Bug Reporting\
**Tags:** fortnite-creative, unreal-editor-for-fortnite, fortnite\
**Created:** [August 17, 2024, 12:19am UTC](https://forums.unrealengine.com/t/blocker-uefn-unable-to-launch-session-as-of-latest-update/1979497 "2024-08-17T00:19:02Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**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:** [August 22, 2024, 11:39pm UTC](https://forums.unrealengine.com/t/blocker-uefn-unable-to-launch-session-as-of-latest-update/1979497/7 "2024-08-22T23:39:08Z")

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hi @VortexCAKO ,  
You have done this before but can you try [Verify UEFN/Fortnite](https://forums.unrealengine.com/t/urc-exe-and-urc-dll-get-flagged-as-malware-from-microsoft-defender/1802519/5) again

If there are any updates they will be applied as well

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