Why has the 4.4.1 update broken all of my projects?

I just updated my engine and now I can’t open any of my old projects that I’ve been working on for some time now. The engine crashes while trying to load the project.

!Id:622512fff189c3e18a8ce35156237ec0

Unknown exception - code 00000001 (first/second chance not available)

Assertion failed: ((UObject*)ContainerPtr)->IsA((UClass*)GetOuter()) [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.4\Engine\Source\Runtime\CoreUObject\Public\UObject\UnrealType.h] [Line: 351]
‘Builder_C_0’ is of class ‘Builder_C’ however

KERNELBASE + 37901 bytes
UE4Editor_Core + 3095292 bytes
UE4Editor_Core + 1661738 bytes
UE4Editor_Core + 1541824 bytes
UE4Editor_CoreUObject + 1534538 bytes
UE4Editor_CoreUObject + 1411042 bytes
UE4Editor_CoreUObject + 1416047 bytes
UE4Editor_CoreUObject + 1303464 bytes
UE4Editor_CoreUObject + 1416047 bytes
UE4Editor_CoreUObject + 547972 bytes
UE4Editor_CoreUObject + 1414048 bytes
UE4Editor_Engine + 15920916 bytes
UE4Editor_Engine + 10588997 bytes
UE4Editor_Engine + 7167531 bytes
UE4Editor_Engine + 7062646 bytes
UE4Editor_Engine + 7091420 bytes
UE4Editor_Engine + 1585712 bytes
UE4Editor_Engine + 1761525 bytes
UE4Editor_Engine + 1696253 bytes
UE4Editor_Engine + 4767679 bytes
UE4Editor_Engine + 9590240 bytes
UE4Editor_UnrealEd + 5500141 bytes
UE4Editor_UnrealEd + 5671434 bytes
UE4Editor_UnrealEd + 2420578 bytes
UE4Editor_UnrealEd + 2594657 bytes
UE4Editor_UnrealEd + 2540781 bytes
UE4Editor_UnrealEd + 2466449 bytes
UE4Editor_UnrealEd + 5632240 bytes
UE4Editor_UnrealEd + 2959412 bytes
UE4Editor_UnrealEd + 2958584 bytes
UE4Editor_UnrealEd + 5826192 bytes
UE4Editor_UnrealEd + 5628448 bytes
UE4Editor!GuardedMain() + 285 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.4\engine\source\runtime\launch\private\launch.cpp:125]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.4\engine\source\runtime\launch\private\windows\launchwindows.cpp:125]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.4\engine\source\runtime\launch\private\windows\launchwindows.cpp:201]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

Hey, Valkon.

Can you give us your dxdiag and log files? This thread will tell you how to get them.

Dxdiag
The problem only started when I upgraded to 4.4.1

And your log files, please?

they’re included check my post.

I’m referring to the log files requested in the thread I linked you.

“If you are experiencing a crash, then please provide us with the .LOG and .DMP files from your [project]/SavedLogs folder. Additionally, you can please send us the CrashReportClient.log file located in C:/Program Files/Unreal Engine/4.4/Engine/Programs/CrashReport/Client/Saved/Logs.”

Here are the dmp and log files. I can’t seem to be able to find CrashReport folder under my program directory. I tested my project with both the code based one and the normal one and both crash on me.

And double-checking some details before I finish entering this report: You’re able to create new projects and open them normally, right? The crash only occurs when opening older projects that worked fine until 4.4.1.

Yes, creating new projects works fine.

If there is away I could go back to 4.4.0 because I really want to work on my projects.

Hi Valkon,

I have reported this bug internally so it can be further investigated.

Regards,

Jonathan

You could go back to 4.4.0 by compiling the GitHub version, but not with the Launcher.

As a few more investigative questions, did you update from 4.4.0 to 4.4.1, or were you on an older version (such as 4.3) when you updated to 4.4.1? Secondly, what versions were your now-broken projects created in?

I’m still unable to reproduce this crash on my machine. Are there any other details you can give me that might help? Are your projects C++ projects? Do they all make heavy use of experimental features like UMG?

I updated from 4.4.0 to 4.4.1. They were made in 4.3 converted to 4.4 preview then 4.4

All blueprints. I used behavior trees, UMG and CanvasRenderTarget2D on them. I also used the mixamo pack.

That should help us narrow it down. Just one more thing. Have you submitted a crash report with the Crash Reporter? If you have, telling me the name of your project (or the Description of the bug you put into the crash reporter) would help a lot.

I typed this “CrashReportForJonathan Dorman”

I also noticed performance issues with this hotfix. My editor used to launch in less than 1 min. Now, it takes more than 3 mins to launch. I’m not sure what’s the problem. I wish there was a revert update button.

We’re still working on figuring this out for you. It would be very helpful if you could send us your project so we could reproduce the crash at the office.

Hmm, okay. Could you make a local copy of the project and remove levels and assets from the copy until it’s small enough to send (but still crashing)? It will be much, much easier to find and fix this crash if we can get our hands on a project that crashes that way.

If you aren’t comfortable with sharing your project publicly, I can send you a private message over the Forums with an email address you can send the project (or link) to.

My projects are +2 Gb big and with my upload speed it’ll take at least 3 days to upload it haha.

I’ll try my best and yes I’d like to be pmed on the forums if you don’t mind. VaLkOn is my nickname there