# OSS Testing in Editor Causes Problem in 4.8

**URL:** <https://forums.unrealengine.com/t/oss-testing-in-editor-causes-problem-in-4-8/325654>\
**Category:** Multiplayer & Networking\
**Tags:** Networking, unreal-engine, question, Blueprint\
**Created:** [July 17, 2015, 5:52pm UTC](https://forums.unrealengine.com/t/oss-testing-in-editor-causes-problem-in-4-8/325654 "2015-07-17T17:52:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Sephern](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Sephern](https://forums.unrealengine.com/u/Sephern)\
**Post date:** [July 17, 2015, 5:52pm UTC](https://forums.unrealengine.com/t/oss-testing-in-editor-causes-problem-in-4-8/325654/1 "2015-07-17T17:52:09Z")

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Please see: [Play testing Online Subsystem Error - Multiplayer & Networking - Epic Developer Community Forums](https://answers.unrealengine.com/questions/259276/play-testing-online-subsystem-error.html)

Testing Multiplayer Shootout game in editor will show you problem. network error that is produced and then destroys session for client also removes error widget from viewport making it impossible to test Shootout game in editor.

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**Author:** ![anonymous\_user\_33800a51](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_33800a51](https://forums.unrealengine.com/u/anonymous_user_33800a51)\
**Post date:** [July 20, 2015, 8:19pm UTC](https://forums.unrealengine.com/t/oss-testing-in-editor-causes-problem-in-4-8/325654/2 "2015-07-20T20:19:46Z")

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Hi Sephern,

This is a known issue in 4.8 using Multiplayer Shootout sample project, reported here (UE-17889):

> **[Multiplayer shootout does not work with 4.8](https://forums.unrealengine.com/questions/249449/multiplayer-shootout-does-not-work-with-48.html)**
>
> Downloaded example, tried to run it with 2 players from main menu system. Standalone i get message, map specified on commandline ‘/Game/Maps/MainMenu’ could not be found. exiting. When playing in new editor with 2 players window i get this… after...

There were some changes with how widgets work that have made Client go black with no cursor in this project, and thus no way to join game. There’s a workaround in that post using shortcuts that at least lets you test gameplay. Otherwise, if you want to test in Editor, you can hook your Join functionality up directly after Find Sessions’ first result, and do Find Sessions using a key press event.

Thanks for report!