How can I remove lighting data in my umap file?

I’ve been working on my Unreal Project, and I recently rebuilt lighting, which was taking forever, and then my computer crashed. Now when I run my project after building, the editor always crashes with Unhandled Exception: EXCEPTION_STACK_OVERFLOW without really any additional information. I’ve tried modifying my stack size with the editbin tool, particularly the /STACK parameter, but that is not working. I’ve also tried removing files not necessary for building and rebuilding, but that hasn’t worked either. I did run into this before and it looks like the only thing that solved it was buying a new GPU. I really do not want to have to do that again.

Another idea is that my stack is growing too large for my computer, as I only have 20GB left in my C: drive, but I feel like this would be RAM usage but I have 48G of RAM so I don’t think it would leak into the C: drive but that could be a cause I’m just throwing it out there.

Any help would be appreciated, if you’ve ran into this before or have any other ideas on how to fix this. Thank you!

I believe ultimately that my lighting was too much, so I want to try to remove the lighting from the umap file directly/surgically. Another idea I have is to set the default map to a different .umap file and then try and load the level once the editor opens. If anyone else has any ideas I’m open to hearing about them as I’m at my wits end on this one.

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Did you try removing the builddata file? It’s next to the map file in the content browser.

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