# Streaming Level for heavy logic blueprint **URL:** \ **Category:** World Creation\ **Tags:** freeze, streaming-level, unreal-engine, UE4, Blueprint, question\ **Created:** [June 18, 2016, 7:52am UTC](https://forums.unrealengine.com/t/streaming-level-for-heavy-logic-blueprint/361197 "2016-06-18T07:52:42Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![KhalimWu](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@KhalimWu](https://forums.unrealengine.com/u/KhalimWu)\ **Post date:** [June 18, 2016, 7:52am UTC](https://forums.unrealengine.com/t/streaming-level-for-heavy-logic-blueprint/361197/1 "2016-06-18T07:52:42Z")
Basically i need to do a loading screen. so i got my Persistent level being used as loading screen and i make it load the streaming level. it works, i can even see the animation on the loading screen for a while, then it freezes…then, when the map is loaded, it unfreezes and works fine. the issue is the freezing (obviously). as far as i understood, streaming levels load without affecting the persistent level so what exactly am i missing? i enabled the World Composition on the persistent level, move the assets with heavy loading to a different level, add that level to a different layer (with distance streaming disabled, as explained on the guide) but it still freezes. The blueprint that is loading is quite heavy, but even if it would take minutes to finallize executing, shouldnt it run on the background?. any help please. used this two guides: > **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)** > > After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — ue4community.wiki! You will be able to find content from the official... > **[World Composition User Guide](https://docs.unrealengine.com/4.27/en-US/BuildingWorlds/LevelStreaming/WorldBrowser/)** > > System for managing large worlds including origin shifting technology.