Fatal error when opening a map in 4.8

Hi,
I´ve recently updated to Version 4.8 and with this new Engine I can´t open certain Maps.
Following error occures and Engine crashes: http://pastebin.com/ZMKkdZjL

Since it seems to be an error involving Blueprints I checked all my Blueprints by opening and compiling them. Because I got no error this way i assume its Level-Blueprint, which I can´t reach, because of this error, which also occures when I right click Map.

Im using VictoryPlugin by , which I already updated to its newest Version.
Another Plugin I use is JSON Query Plugin which isn´t used in any Level-Bluerpint.

I´ve also tried to start Game via VirtualStudio which results in same Error. While Solutionbuild and Compiling are working fine.

I hope someone knows a better Solution than deleting Maps.

edit: UnrealEngine Log

Hi Hokan22,

Can you attach log from your project after this crash occurs? You can find it in your project’s Saved\Logs folder. Thanks!

Here it is

Try removing your blueprints from your contents folder (move them to your desktop), do you get same crash when attempting to open maps? What kind of functionality do you have in your level blueprint?

I´ve removed all my blueprints from blueprint folder and error is still there.
I´ve also cleared level blueprint (which were 4 nodes) in 4.7 and converted project afterwards, which still leads to same issue.

Try creating a new, blank project with no additional content. Copy the .umaps that are having this error to new project. Are they able to open in that project?

Yes, they are able to open in a new, blank project.

Can you send me a copy of your project? I’ll take a look and see what I can find.

My Project is 12GB in size, so im not sure how I could send it to you.

Ah that certainly would be problematic. next option would be to remove your contents folder and add object back into project until it crashes again. At this point we’ll be able to limit what is specifically causing crash. The .umap is not corrupted as you were able to open them in a blank project, which means error is occurring from something that is in your project and placed within level or that level is accessing in some way. Remove contents folder and try to open map, if it opens, add things back until error occurs again.

OK, i found BlueprintActor causing engine to crash. It was a BlueprintActor, which was used in according level, after deleting it maps load fine.
Should I send it your way in case you want to check if its and engine bug?

Thansk for your efforts.

Kind Regards

I’ll happily take a look to see what may be going on with that blueprint. It is possible it just corrupted, but if there is a specific node or function that I can find that has an error I’ll be able to report it.

Here is a DriveLink to uasset in question.
https://.com/file/d/0B5WhhnlX–EKdGFpeGtLYTFZUE0/view?usp=sharing