Serial size mismatch

Everytime I load Unreal Engine Editor for Fortnite, it attemps to load a Project that I was working automatically on then promptly crashes every single time I load it up. The screenshots below show the crash report, the first two are in the same line, I just could fit all of it in one screenshot so I split it into two. The reason this is happening is because I set it to that everytime I load up UEFN, it auto-loads the last project I worked on, and I think that the project is bugged. I tried quickly going into some settings when I loaded up the application but I wasnt able to click or select anything when I did that, it would just show that it was loading my project then crash without letting me do anything in the app.

Here is the crash Report:
Assertion failed: [File:D:\build++Fortnite\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\LinkerLoad.cpp] [Line: 4573] /MyProjectE/ExternalActors/MyProjectE/D/L6/QRUTQX4BVWMTIGDBLIJAKJ: LandscapeComponent /MyProjectE/MyProjectE.MyProjectE:PersistentLevel.Landscape_0.LandscapeComponent_10: Serial size mismatch: Got 46999, Expected 51795

KERNELBASE
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kernel32
ntdll

I fixed it, I dug through my files and found the text file where the setting to start the last map on startup was and simply just set it to false, and it booted perfectly.