Editor crashes on specific project

I moved all my Adobe apps from my C: drive (Program Files 86x) to my E: drive, and after I did that, Unreal Engine wouldn’t load one of my projects. It loads to 50% and then closes. It loads all of my other projects, but not this one. The files are in my OneDrive, and I only used Blueprints, if that’s important.The crash log only says:
MachineId:E4436606484B8958E3097780E30C90B4
EpicAccountId:e751f4f8a6bf4ab1ae6b4df622c032af

You do not have any debugging symbols required to display the callstack for this crash.

I’ve tried deleting my Intermediate, Saved, and Build folders, but nothing’s been working. Could anyone please help?

Okay, you probably shouldn’t have deleted your saves, considering that contained your backup files, but no worries.

Here’s what you should do:

  1. Get your saved folder back from your recycling bin
  2. Open up the Saved/Backup folder
  3. Create a new project
  4. Open up the projects content folder in Windows Explorer
  5. Snap the to windows to either side (not necessary, just makes step 6 easier)
  6. Drag. or Copy/Paste, the most recent back up of each file into the content folder of the new project

After that, you’re probably gonna want to recreate your folders and organize your assets. There might be a few errors on start up, but that’s normal. I’ve reimport all my assets to a new project loads of times, for different reasons as well.

The errors are easy to fix and are just reference issues. Even if there’s a lot, don’t get overwhelmed, it takes only minutes.

Hope this helps!

Hello GizmoUnrealer,

Your Crash log most likely does not have the debug tools to give you the full error, to enable these:

  1. in your launcher next to the engine version click the yellow arrow tab
  2. select options
  3. check the box “editor symbols for debugging”

If you enable these your crash log will display the full error

From our end this is the full error we are seeing from your crash log:

Assertion failed: InPos <= Size [File:D:\Build++UE4+Release-4.14+Compile\Sync\Engine\Source\Runtime\Core\Private\HAL\FileManagerGeneric.cpp] [Line: 619] Attempted to seek past the end of file (270133/307), file: …/…/…/…/…/…/Users/smith/OneDrive/Documents/Unreal Projects/FNaFUNREALGAMENEW/Content/ThirdPersonBP/Maps/FreddyFazbears.umap. The file is most likely corrupt.

Here is something I would like to try as we narrow down the issue you are experiencing:

  1. Move the corrupted .umap out of your project and launch the project

It works, but the corrupted .umap was apparently my main level, with all of my building and everything. Does this mean I will need to rebuild the entire map, or is there a way to fix it?