# Unreal Engine 5.6 Released

**URL:** <https://forums.unrealengine.com/t/unreal-engine-5-6-released/2538952>\
**Category:** Announcements\
**Tags:** unreal-engine, Released\
**Created:** [June 3, 2025, 1:50pm UTC](https://forums.unrealengine.com/t/unreal-engine-5-6-released/2538952 "2025-06-03T13:50:06Z")\
**Posts on this page:** 1\
**Showing post:** 300

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**Author:** ![CHADALAK1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@CHADALAK1](https://forums.unrealengine.com/u/CHADALAK1)\
**Post date:** [September 8, 2025, 2:45am UTC](https://forums.unrealengine.com/t/unreal-engine-5-6-released/2538952/300 "2025-09-08T02:45:37Z")

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The main issue I’m getting at least with 5.6 is `UK2Node_FunctionEntry::Serialize()` with blueprints. For the most part, it jumps from different blueprint asset to different blueprint asset that it fails on. It can package maybe 1 out of 10 times though… that being said, it’s issue is always inconsistent `UATHelper: Packaging (Windows): LogCore: Warning: ‘UStruct::IsChildOf’ was called with a null ‘this’ pointer - this is no longer supported.`  
`PackagingResults: Warning: ‘UStruct::IsChildOf’ was called with a null ‘this’ pointer - this is no longer supported.` UE 5.6.1 is a bit broken at this moment due to this…

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