# Our game works fine with 4.10.2, crashes in 4.10.3 **URL:** \ **Category:** Platform & Builds\ **Tags:** crashes, unreal-engine, question\ **Created:** [February 22, 2016, 5:04am UTC](https://forums.unrealengine.com/t/our-game-works-fine-with-4-10-2-crashes-in-4-10-3/348225 "2016-02-22T05:04:14Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![Lambda42](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Lambda42](https://forums.unrealengine.com/u/Lambda42)\ **Post date:** [February 22, 2016, 5:04am UTC](https://forums.unrealengine.com/t/our-game-works-fine-with-4-10-2-crashes-in-4-10-3/348225/1 "2016-02-22T05:04:14Z")
So, in 4.10.2 our game works fine. I made unfortunate decision to upgrade to 4.10.3 and now our game crashes on this code: > UE4Editor-Engine.dll!UEngine::LoadMap(FWorldContext & WorldContext, FURL URL, UPendingNetGame \* Pending, FString & Error) Line 9479 C++ > UE4Editor-Engine.dll!UEngine::Browse(FWorldContext & WorldContext, FURL URL, FString & Error) Line 8650 C++ > UE4Editor-Engine.dll!UEngine::TickWorldTravel(FWorldContext & Context, float DeltaSeconds) Line 8857 C++ > UE4Editor-UnrealEd.dll!UEditorEngine::Tick(float DeltaSeconds, bool bIdleMode) Line 1285 C++ > UE4Editor-UnrealEd.dll!UUnrealEdEngine::Tick(float DeltaSeconds, bool bIdleMode) Line 361 C++ > UE4Editor.exe!FEngineLoop::Tick() Line 2427 C++ > UE4Editor.exe!GuardedMain(const wchar\_t \* CmdLine, HINSTANCE\_\_ \* hInInstance, HINSTANCE\_\_ \* hPrevInstance, int nCmdShow) Line 142 C++ > UE4Editor.exe!WinMain(HINSTANCE\_\_ \* hInInstance, HINSTANCE\_\_ \* hPrevInstance, char \* \_\_formal, int nCmdShow) Line 189 C++ > [External Code] which points me at: ``` // Fixme: hacky but we need to set PackageFlags here if we are in a PIE Context. // Also, don't add to root when in PIE, since PIE doesn't remove world from root if (WorldContext.WorldType == EWorldType::PIE) { check(WorldContext.World()->GetOutermost()->HasAnyPackageFlags(PKG_PlayInEditor)); ``` Also there appears to be no option to downgrade from 4.10.3 to 4.10.2, so that sucks. ---
**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:** [February 22, 2016, 3:40pm UTC](https://forums.unrealengine.com/t/our-game-works-fine-with-4-10-2-crashes-in-4-10-3/348225/2 "2016-02-22T15:40:19Z")
Hi Lambda42, This is a known issue in 4.10.3 hotfix, which crashes game and possibly editor when traveling between maps (UE-27124). We have since fixed this internally, and fix is included in 4.10.4 hotfix which should be released shortly. Let us know if this problem still occurs after updating to 4.10.4. Thanks! ---
**Author:** ![shared\_pointer](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@shared\_pointer](https://forums.unrealengine.com/u/shared_pointer)\ **Post date:** [June 29, 2016, 8:57am UTC](https://forums.unrealengine.com/t/our-game-works-fine-with-4-10-2-crashes-in-4-10-3/348225/3 "2016-06-29T08:57:38Z")
Hi, I’m having this issue with 4.12.3, what is causing it and how can I fix it? Thanks ---
**Author:** ![Sean\_Flint](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Sean\_Flint](https://forums.unrealengine.com/u/Sean_Flint)\ **Post date:** [June 30, 2016, 5:18pm UTC](https://forums.unrealengine.com/t/our-game-works-fine-with-4-10-2-crashes-in-4-10-3/348225/4 "2016-06-30T17:18:05Z")
This issue has been re-opened, and is being investigated by our developers; however, there is currently no timeline for when a fix will be released. Have a great day ---
**Author:** ![shared\_pointer](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@shared\_pointer](https://forums.unrealengine.com/u/shared_pointer)\ **Post date:** [July 1, 2016, 11:24am UTC](https://forums.unrealengine.com/t/our-game-works-fine-with-4-10-2-crashes-in-4-10-3/348225/5 "2016-07-01T11:24:28Z")
If anyone else is having this problem and using source code, I did this for a fix until official update. Engine\Source\Runtime\Engine\Private\UnrealEngine.cpp line 9686 in if statement before check() add: ``` WorldContext.World()->GetOutermost()->SetPackageFlags(PKG_PlayInEditor); ``` …seems to work okay for now. ---
**Author:** ![shared\_pointer](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@shared\_pointer](https://forums.unrealengine.com/u/shared_pointer)\ **Post date:** [July 4, 2016, 12:41pm UTC](https://forums.unrealengine.com/t/our-game-works-fine-with-4-10-2-crashes-in-4-10-3/348225/6 "2016-07-04T12:41:11Z")
Hi Sean, is there a way I can monitor progress of this bug? it’s causing me a lot of issues and I can’t progress without a fix. Thanks. ---
**Author:** ![Sean\_Flint](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Sean\_Flint](https://forums.unrealengine.com/u/Sean_Flint)\ **Post date:** [July 5, 2016, 12:03pm UTC](https://forums.unrealengine.com/t/our-game-works-fine-with-4-10-2-crashes-in-4-10-3/348225/7 "2016-07-05T12:03:33Z")
We do not have a way for public to track progress of bug reports at this time; however, I will continue to provide updates on issue as they become available. ---
**Author:** ![shared\_pointer](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@shared\_pointer](https://forums.unrealengine.com/u/shared_pointer)\ **Post date:** [September 12, 2016, 10:14am UTC](https://forums.unrealengine.com/t/our-game-works-fine-with-4-10-2-crashes-in-4-10-3/348225/8 "2016-09-12T10:14:21Z")
Hi Sean, this issue (UE-27124) is still happening in 4.13.0 ---
**Author:** ![Sean\_Flint](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Sean\_Flint](https://forums.unrealengine.com/u/Sean_Flint)\ **Post date:** [September 12, 2016, 3:37pm UTC](https://forums.unrealengine.com/t/our-game-works-fine-with-4-10-2-crashes-in-4-10-3/348225/9 "2016-09-12T15:37:12Z")
Hey MikeD, What are repro steps that you are using when crash occurs? original repro no longer occurs for me in 4.13.0. ---
**Author:** ![shared\_pointer](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@shared\_pointer](https://forums.unrealengine.com/u/shared_pointer)\ **Post date:** [September 12, 2016, 5:15pm UTC](https://forums.unrealengine.com/t/our-game-works-fine-with-4-10-2-crashes-in-4-10-3/348225/10 "2016-09-12T17:15:49Z")
Hi Sean, It really is just clicking Play In Editor from my level, it used to work perfectly, I haven’t made any changes to this level in months as it’s a simple debug UI launch off. Anyway, I’ll try and get something more concrete for you over next few days. ---
**Author:** ![Sean\_Flint](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Sean\_Flint](https://forums.unrealengine.com/u/Sean_Flint)\ **Post date:** [September 12, 2016, 5:49pm UTC](https://forums.unrealengine.com/t/our-game-works-fine-with-4-10-2-crashes-in-4-10-3/348225/11 "2016-09-12T17:49:46Z")
Okay, feel free to come back to thread if you are able to determine a solid repro case. Thank you! ---
**Author:** ![anonymous\_user\_a352201a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a352201a](https://forums.unrealengine.com/u/anonymous_user_a352201a)\ **Post date:** [November 15, 2016, 4:27am UTC](https://forums.unrealengine.com/t/our-game-works-fine-with-4-10-2-crashes-in-4-10-3/348225/12 "2016-11-15T04:27:28Z")
Hi Mike and Sean, I have same problem, do you have any further information? ---
**Author:** ![Sean\_Flint](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Sean\_Flint](https://forums.unrealengine.com/u/Sean_Flint)\ **Post date:** [November 15, 2016, 8:30pm UTC](https://forums.unrealengine.com/t/our-game-works-fine-with-4-10-2-crashes-in-4-10-3/348225/13 "2016-11-15T20:30:49Z")
Unfortunately, without a repro case we were unable to get this issue to occur in 4.13. If you have a set of repro steps we can follow, feel free to let me know and I’ll be glad to continue to investigate.