[EDITOR] Editor crashes on launch

[AronD]

Hi,
I am about to release my first game, the only thing left is to test Android leaderboards and in in-app purchases(which by the way, don't work, and the documentation is not really clear on how to test these), But the main thing I write is that last night I was working on the game in the editor, then next day I couldn't start the editor as it crashed with the following error message:

"Assertion failed: Existing.Linker->ExportMap[Existing.LinkerIndex].Object==this [File:\Build\++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectLinker.cpp] [Line: 107]"

This is pretty annoying to experience just before release...

What can I do to make it work?

[Sith_Handbuilt]

I thought I was the only one. I have been having this issue for the past 2-3 weeks. At first I tried migrating all to a fresh project and it worked... and after a week the fresh one started to crash with the same error.

[Sith_Handbuilt]

Hi,
I am about to release my first game, the only thing left is to test Android leaderboards and in in-app purchases(which by the way, don't work, and the documentation is not really clear on how to test these), But the main thing I write is that last night I was working on the game in the editor, then next day I couldn't start the editor as it crashed with the following error message:

"Assertion failed: Existing.Linker->ExportMap[Existing.LinkerIndex].Object==this [File:\Build\++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectLinker.cpp] [Line: 107]"

This is pretty annoying to experience just before release...

What can I do to make it work?

Hey Aron, were you able to resolve this issue? I'd love to know the fix if you already have. Thanks!

[Amanda.Schade]

Are you all still experiencing these crashes?

[Cipher_ab]

Hey,
Im facing the same issue. One of my Widgets is causing this issue. When I dont have that widget in the project and open it, it works fine. But when I import the same Widget, it wont open once I closed UE.

Im using UE 4.22
I have the Actor Sequence Experimental Plugin enabled

[VictorLerp]

Would you be able to provide us with the .log file? You can find it in "Project\Saved\Logs".

[MSExc3l]

having same problem =[

[AronD]

It was a bug in the 4.22 version of the engine, I don't know in which cases it occurs, what invokes it, but in 4.23 this issue is solved, I could launch my project with no problem.