(UE4-27) Project Crashes

(UE4-27)

Summary

Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/CoreUObject/Private/UObject/LinkerLoad.cpp] [Line: 4262] MapBuildDataRegistry /Game/Sandbox_BuiltData.Sandbox_BuiltData: Serial size mismatch: Got 10456095, Expected 41912895

Anyone who is facing this issue just deletes sandbox-built data. Delete the built data file of your project and then reopen the project it should work.