# Weird rendering while loading a world composition map

**URL:** <https://forums.unrealengine.com/t/weird-rendering-while-loading-a-world-composition-map/444197>\
**Category:** Rendering\
**Tags:** bug, beginplay, constructors, unreal-engine, Rendering, question, World-Composition\
**Created:** [February 26, 2019, 4:12pm UTC](https://forums.unrealengine.com/t/weird-rendering-while-loading-a-world-composition-map/444197 "2019-02-26T16:12:47Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![JoePenuci](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@JoePenuci](https://forums.unrealengine.com/u/JoePenuci)\
**Post date:** [February 26, 2019, 4:12pm UTC](https://forums.unrealengine.com/t/weird-rendering-while-loading-a-world-composition-map/444197/1 "2019-02-26T16:12:47Z")

</div>

I have a map with world composition enabled and 1600 sublevels. It takes some seconds to open the map. While loading there is a weird rendering. It appears in “Standalone Game” and the packaged release build but not in PIE.

I made a video of the rendering. The throbber on the bottom right is not made by me, so this has to be a engine thing.

![269775-ezgif-3-8af407dab69a.gif](https://d3kjluh73b9h9o.cloudfront.net/original/4X/d/4/e/d4ee87238287cb0dce91b0a8483aad79a3a7b2fc.gif)

I narrowed it down to appearing after the underlying LevelScriptActor::constructor and disappearing before the Level::BeginPlay call. It seems to be a rendering of the persistent level with initial values (Player at 0/0/0; CameraBoom arm length at 0 etc.) and no streamed in sublevels.

What can I do to prevent this to happen or is this a bug?