# Fortnite Ecosystem v31.00 with Known Issues

**URL:** <https://forums.unrealengine.com/t/fortnite-ecosystem-v31-00-with-known-issues/1978173>\
**Category:** Announcements\
**Tags:** fortnite-creative, unreal-editor-for-fortnite, fortnite\
**Created:** [August 16, 2024, 8:10am UTC](https://forums.unrealengine.com/t/fortnite-ecosystem-v31-00-with-known-issues/1978173 "2024-08-16T08:10:43Z")\
**Posts on this page:** 1\
**Showing post:** 10

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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:** [August 20, 2024, 1:20pm UTC](https://forums.unrealengine.com/t/fortnite-ecosystem-v31-00-with-known-issues/1978173/10 "2024-08-20T13:20:07Z")

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We have temporarily disabled backward compatibility checking in the UEFN editor, but it will still be checked and enforced when publishing. This addresses an issue with some creators being unable to build and test their islands.

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_[View the full topic](https://forums.unrealengine.com/t/fortnite-ecosystem-v31-00-with-known-issues/1978173)._