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Error on Opening Game Level from Game Menu in a Packaged Game: Assertion Failed

Hi, on launching a Game Level from the Game Menu in a newly packaged game, I get the following error:

Assertion failed: Stride == TheCppStructOps->GetSize() && PropertiesSize == Stride
[File:D:\Build++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Class.cpp] [Line:2453]

Error.jpg

Also, find a second attached image for reference to Line: 2453 in Class.cpp.

I am new to programming and any ideas about what do I need to address will be greatly appreciated!!!

(My Engine Version is 4.22.3)

Hi everyone, this error was resolved by changing Project Settings>Packaging>Build Configuration from Development to Shipping