# Ue 5.6 Build all levels failed

**URL:** <https://forums.unrealengine.com/t/ue-5-6-build-all-levels-failed/2552526>\
**Category:** Programming & Scripting\
**Tags:** unreal-engine, question\
**Created:** [June 12, 2025, 7:27am UTC](https://forums.unrealengine.com/t/ue-5-6-build-all-levels-failed/2552526 "2025-06-12T07:27:33Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![SupportiveEntity](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@SupportiveEntity](https://forums.unrealengine.com/u/SupportiveEntity)\
**Post date:** [June 12, 2025, 8:50am UTC](https://forums.unrealengine.com/t/ue-5-6-build-all-levels-failed/2552526/2 "2025-06-12T08:50:09Z")

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Hey there @Dalaware! Welcome back to the community! The swarm client was missing from the 5.6 build. The fix is already in the dev branch at the moment, but it will be introduced in hotfix one. In the meantime, you can copy the previous version’s built folders and it will work in the meantime, this thread has instructions on how to do that. Let me know if this helps!

> [@UE 5.6 has no swarm manager](https://forums.unrealengine.com/t/ue-5-6-has-no-swarm-manager/2539483/18):
>
> Looks like Epic fixed it in “Dev-5.6 branch”. So probably will be working again in 5.6.1

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