Since I updated to 4.7.4 from 4.7.3, Any project crashes

Hello,

I’m posting here since weird stuff has started to happen since I updated to 4.7.4 from 4.7.3,
any project I try to load is crashing at 93%, I tried the loading my own project and even the MultiplayerShootout, both crashes. I tried to open a new project and copied all my content folder to the new project, and still crashes.

It seems that all the files are corrupted, widgets, controller, state, instance, everything causes the engine to crash.
Hopefully it can be resolved, I worked on this project pretty much.
Is it because routing nodes? No idea…

Thanks…

EDIT: Just to sharpen things: Not any project.
Shootergame seems to be working. One of my old version of this project seems to be working. Some of my current projects widgets seems to be working.
It isn’t the first time this happens, last time I updated it happened again, I was able to fix it since only the PlayerController BP caused the crashing, and it contained nothing. Now in my current project, even the GameMode which holds no information causes crashing. I’ll upload my project if it helps to solve things…

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Hi,
I’m getting the same error: updating to 4.7.4 and editor crashes around 93% when loading

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Hi Baf179,

You said that Shootergame works correctly. That project is C++ based. Could you try creating a new 1st Person template project, one blueprint and the other C++. Then see if they both crash or just one? I’m thinking this maybe blueprint related.

Also, please post your Callstack from the Crash Reporter window.

This sounds like an issue that we are aware of and it’s been logged as JIRA UE-13250 in our tracking software.

Please try the test I mentioned above anyways and upload your Callstack. They will help us narrow down the cause.

Hello! and thanks for answering.

I’ve created two projects of the Third Person Template, both BP and C++ based. They both run fine, the problem occur whenever an existing project that was made in an older version is loading for the first time in a newer version,
My project Space Mix Wars that was made in 4.7.3 and opened it in 4.7.4 to find problems.

Although I’m a programmer, I find BP serve me better at the moment. However, I am starting to think about a full transition to C++ since this is the second time now it happens to me and its much worse now…

I’m attaching 2 call stacks, first is mine, second is the MultiplayerShootout which crashes as well.

Space_Mix_Wars - Kept crashing on loading, at 93% on the MainMenu map, so I recreated it, it stopped crashing. Then kept crashing because I tried to load MyGameMode as default for the Project Settings, which includes MyGameInstance, MyPlayerController etc. Crashes also when trying to access the “complicated” widgets, playercontroller, playerstate, gamemode etc…

MultiplayerShootout - Crashes on load at 93%

Thanks…

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Let me know if you found a way to solve it, same clockwise.
Are your files corrupted too? Try removing the main map your project loads by moving it to another folder temporarily, and try to open some blueprints/widgets whatever you have there, see if it crashes.

YES! Removing the maps made the editor able to open the project

but saddly yes as well: the editor crashed when opening a blueprint…

Haha.

I can think of couple of a solutions to our problem at the moment…

  1. I’m currently attempting to install Unreal Engine 4 on another computer to see if I can load my project on it, if so, this computer is the problem. Since not all people suffer from this “JIRA UE-13250” I assume there is a chance I can load my project and restore my stuff.
  2. I tried to find an external Blueprint editor of some sort, to see if I can restore the stuff.
  3. Desperately opening the uassets files with Wordpad and trying to diff between a perfectly empty corrupted MyGameMode to another perfectly empty not corrupted MyGameMode.

I’ll tell you my results later today

And how much did you really work on that First Person Template Project of yours? did it get any complicated? did you use rerouting nodes by any chance?
Because an old First Person Template in BP is working for me too, (Was made in 4.7.3 and works in 4.7.4).

Could be too I guess, but for me a crash arises when I try to open a non-multiplayer related widget for example. This is confusing.

I have the same problem with the Multiplayer Shootout project. Crashes at 93%. My other projects seem to be working fine. In particular, I had an existing Blueprint project based on the First Person template and it still works. So it seems to be something used by the Multiplayer shootout project. I attached the log of the crash.

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The MultiplayerShootout project is also crashing on load at 93% for me since I updated from 4.7.3 to 4.7.4

I do use a few rerouting nodes… So I don’t think that what’s causing the issue. I was more thinking about something related to multiplayer stuff. One colleague of mine used things from the Multiplayer shootout project to create a new multiplayer project these last fews days and this new project crashes too.

If I removed the maps, the project loads but the Editor crashes when I click on Project settings->Maps and Modes or if I try to load a map created with a previous version.

Hi Valpaz,

The issue with Multiplayer Shootout is a known issue as well that has already been fixed internally. It will also be part of the same update that should fix this issue.

Hello again,
here’s a small update:

  • I tried opening my project on another PC, and it kept crashing upon loading the troublesome Widgets/Blueprints.
  • Tried using diff(linux)/FC(windows) between an empty corrupted GameMode BP and an empty working GameMode BP and there is too much difference between them.
  • It has nothing to do with rerouting nodes.

Well, I lost hope for now.
When will the the next update will be released? with the included fix to this annoying problem :\

Thanks.

Thanks for your help

I don’t have an exact date to give you yet but it should be soon’ish. We are hoping this week or next week if all goes well with testing.

Hi Bar179,

The latest hotfix (4.7.5) is now out. Please give it a try when you get a chance and let us know if it fixes this issue for you or not.

Cheers,

TJ

It’s dope!