# Unreal Engine 5.1 Crashes Opening a Map, Hides Blueprint Actors

**URL:** <https://forums.unrealengine.com/t/unreal-engine-5-1-crashes-opening-a-map-hides-blueprint-actors/692351>\
**Category:** Feedback & Requests\
**Tags:** unreal-engine, bug-report\
**Created:** [November 16, 2022, 11:19pm UTC](https://forums.unrealengine.com/t/unreal-engine-5-1-crashes-opening-a-map-hides-blueprint-actors/692351 "2022-11-16T23:19:03Z")\
**Posts on this page:** 1\
**Showing post:** 19

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**Author:** ![OldNice](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@OldNice](https://forums.unrealengine.com/u/OldNice)\
**Post date:** [January 24, 2023, 7:00am UTC](https://forums.unrealengine.com/t/unreal-engine-5-1-crashes-opening-a-map-hides-blueprint-actors/692351/19 "2023-01-24T07:00:02Z")

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Same issue discussed here: [https://forums.unrealengine.com/t/actors-bp-disapear-when-build-geometry-or-lighting-ue5-1-0/692183](https://forums.unrealengine.com/t/actors-bp-disapear-when-build-geometry-or-lighting-ue5-1-0/692183)

I issued a bug report to unreal a couple weeks ago, and was told that this issue was already “known”, and was forwarded here: [https://issues.unrealengine.com/issue/UE-174798](https://issues.unrealengine.com/issue/UE-174798)

Obviously the issue goes far deeper than mere spline components, but this is being downplayed in every official avenue. This leads me to suspect that the traditional levels are being phased out, especially if this is fixed by using world partitions. Even the spline component bug report is “unresolved”, with no target version for a fix.

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