# Unreal Engine 5 crashes on Start up **URL:** \ **Category:** Blueprint\ **Tags:** unreal-engine, UE5-0\ **Created:** [June 1, 2021, 4:10am UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776 "2021-06-01T04:10:03Z")\ **Posts on this page:** 16\ **Page:** 3
**Author:** ![Willflavor](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Willflavor](https://forums.unrealengine.com/u/Willflavor)\ **Post date:** [June 15, 2023, 7:41pm UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/41 "2023-06-15T19:41:48Z")
> [@Ivan3z](#): > > maybe could be the configuration in DefaultEngine.ini maybe could be the configuration in DefaultEngine.ini but that don’t tell me what I should change… ---
**Author:** ![Ivan3z](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Ivan3z](https://forums.unrealengine.com/u/Ivan3z)\ **Post date:** [June 15, 2023, 7:53pm UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/42 "2023-06-15T19:53:15Z")
The (OnlineSubsytem or OnlineSubsitemUtils or OnlineSubsytemEOS) Configuration… Online Subsystem is being replaced by Online Services I had a couple of crashes and I had to reinstall the plugins… and it worked > ### Online Services > > The Online Services plugins have not been tested in shipping titles. As of UE 5.1, the Online Services plugins are an API-complete version for developers to use with the intention that they will be shipping on a future version of the engine. We also recommend using Online Services for developers targeting their own backend, or those who will be incorporating a number of UE upgrades beyond 5.1 into their project before shipping. > > ### Online Subsystem > > Use the [Online Subsystem](https://docs.unrealengine.com/5.1/en-US/online-subsystem-in-unreal-engine) for any title shipping in the near future, or when you do not plan to incorporate any engine upgrades beyond UE 5.1 into the project. And probably some of this configuration (DefaultEngine.ini) has stopped working > [OnlineSubsystem] > DefaultPlatformService=EOS > > [OnlineSubsystemEOS] > bEnabled=false > > [/Script/OnlineSubsystemUtils.OnlineEngineInterfaceImpl] > !CompatibleUniqueNetIdTypes=ClearArray > +CompatibleUniqueNetIdTypes=EOS > > [/Script/OnlineSubsystemEOS.EOSSettings] > … > … > > [/Script/Engine.Engine] > !NetDriverDefinitions=ClearArray > +NetDriverDefinitions=(DefName=“GameNetDriver”,DriverClassName=“OnlineSubsystemEOS.NetDriverEOS”,DriverClassNameFallback=“OnlineSubsystemUtils.IpNetDriver”) > > [/Script/OnlineSubsystemEOS.NetDriverEOS] > bIsUsingP2PSockets=true ---
**Author:** ![Ivan3z](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Ivan3z](https://forums.unrealengine.com/u/Ivan3z)\ **Post date:** [June 15, 2023, 8:00pm UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/43 "2023-06-15T20:00:38Z")
by the way… I’m talking about the error of the original post… he had an error in the login acquiring the identifier of the Epic account. just in case… ---
**Author:** ![Ivan3z](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Ivan3z](https://forums.unrealengine.com/u/Ivan3z)\ **Post date:** [June 15, 2023, 8:13pm UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/44 "2023-06-15T20:13:02Z")
You have a map error… You probably need to reinstall the game. Or wait for an update that fixes the problem. ---
**Author:** ![Willflavor](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Willflavor](https://forums.unrealengine.com/u/Willflavor)\ **Post date:** [June 16, 2023, 3:33am UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/45 "2023-06-16T03:33:25Z")
My friend sorry but you are being confusing with your answer… Is the solution you gave about Online subsystem is for my crash issue ? ---
**Author:** ![Ivan3z](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Ivan3z](https://forums.unrealengine.com/u/Ivan3z)\ **Post date:** [June 16, 2023, 3:09pm UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/46 "2023-06-16T15:09:19Z")
Nope. It was for the original post (the first post). You have a bug in the game. Only Cyber punk programmers can fix it. Wait for an update or reinstall it. ---
**Author:** ![Willflavor](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Willflavor](https://forums.unrealengine.com/u/Willflavor)\ **Post date:** [June 16, 2023, 11:43pm UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/47 "2023-06-16T23:43:40Z")
You think it’s from the cyberpunk environnement ? ---
**Author:** ![Ivan3z](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Ivan3z](https://forums.unrealengine.com/u/Ivan3z)\ **Post date:** [June 17, 2023, 2:53am UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/48 "2023-06-17T02:53:36Z")
yes, the map is broken, it has a bug ---
**Author:** ![Willflavor](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Willflavor](https://forums.unrealengine.com/u/Willflavor)\ **Post date:** [June 17, 2023, 3:38am UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/49 "2023-06-17T03:38:09Z")
Thanks for your info Ivan3z I don’t understand how it happened I’m going to look for Specific cyberpunk map crashes online, thanks ---
**Author:** ![Ivan3z](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Ivan3z](https://forums.unrealengine.com/u/Ivan3z)\ **Post date:** [June 17, 2023, 3:48am UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/50 "2023-06-17T03:48:02Z")
Who made that map? (Cyber\_punk\_NEW) The map is in (/Game/Map) Directory. I don’t know if this would work. But you can delete it. It’s just an idea… I am not responsible for this. I don’t know what will happen if you do it. ---
**Author:** ![Willflavor](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Willflavor](https://forums.unrealengine.com/u/Willflavor)\ **Post date:** [June 17, 2023, 4:11am UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/51 "2023-06-17T04:11:18Z")
Thanks for the info Ivan3z I don’t want to try any ‘‘not sure’’ move on this map I have already erased it once by mistake I don’t want to expierience that again 😅 so many several answers I feel lost from having tried all solutions that didn’t work plus it takes a while to build, cook package , I think it’s a bit disappointing to work on a software that don’t even let you package after developing you go on youtube and there is dozen K views of videos about solution for crashes plus having to dig around not getting a clear solution is really frustating and most of all disappointing… ---
**Author:** ![Ivan3z](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Ivan3z](https://forums.unrealengine.com/u/Ivan3z)\ **Post date:** [June 17, 2023, 4:14am UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/52 "2023-06-17T04:14:14Z")
I’m sorry about it. I wish you luck ---
**Author:** ![Willflavor](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Willflavor](https://forums.unrealengine.com/u/Willflavor)\ **Post date:** [June 17, 2023, 4:27am UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/53 "2023-06-17T04:27:14Z")
Thanks Ivan3z 🙏 ---
**Author:** ![Willflavor](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Willflavor](https://forums.unrealengine.com/u/Willflavor)\ **Post date:** [June 17, 2023, 4:31am UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/54 "2023-06-17T04:31:40Z")
If I erase the map the way you told me won’t it erase it from the game as well ? ---
**Author:** ![Ivan3z](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Ivan3z](https://forums.unrealengine.com/u/Ivan3z)\ **Post date:** [June 17, 2023, 4:35am UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/55 "2023-06-17T04:35:19Z")
yes… but it is possible that the game starts correctly… I REPEAT: I never did this… it may not work ---
**Author:** ![Broddi\_Rakblad](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Broddi\_Rakblad](https://forums.unrealengine.com/u/Broddi_Rakblad)\ **Post date:** [September 11, 2023, 4:08pm UTC](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776/56 "2023-09-11T16:08:06Z")
Yeah, deleting of whole project Intermediate folder helped me too [Previous page](https://forums.unrealengine.com/t/unreal-engine-5-crashes-on-start-up/232776.md?page=2)