# v41.00 Known Issues & Pre-Release Updates

**URL:** <https://forums.unrealengine.com/t/v41-00-known-issues-pre-release-updates/2726053>\
**Category:** Issues and Bug Reporting\
**Tags:** fortnite-creative, unreal-editor-for-fortnite, fortnite\
**Created:** [June 3, 2026, 3:00pm UTC](https://forums.unrealengine.com/t/v41-00-known-issues-pre-release-updates/2726053 "2026-06-03T15:00:50Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**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:** [June 4, 2026, 9:55pm UTC](https://forums.unrealengine.com/t/v41-00-known-issues-pre-release-updates/2726053/4 "2026-06-04T21:55:01Z")

</div>

Live Edit:

- List item You may experience issues launching a session if you’ve switched between different Epic accounts while editing the same project on the same Windows user and machine. If you do, please clear the following directory and try again.

`%LOCALAPPDATA%/UnrealEditorFortnite/Intermediate/ValkyrieUploadTemp`

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