How to fix the errorr:OodleDecode: compressed buffer starts with zero byte; invalid or corrupt compressed stream.

I was getting this error after a 5.3.2 (source) packaging attempt caused my computer to bluescreen. I originally thought it was something corrupted in my project files but after I tried to open a fresh project and got the same error I realized it was a problem with the engine (or Windows 11?).

The following steps might be overkill but they did end up resolving the problem:

  1. Delete the Derived Data Cache (DDC) in my source compiled Engine
  2. Delete DDC in AppData (C:\Users\AppData\Local\UnrealEngine)
  3. Delete DDC + Binaries, Intermediate, Saved from project folder
  4. Turn off “Read-Only” on all subfolders of engine and project
  5. Restart PC
  6. Open Engine solution in IDE and compile
  7. Right-click on Project file and “Generate VS Project Files”
  8. Open Project solution in IDE and compile
  9. Launch project into UE Editor and observe error being resolved
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