How to track down log warning

When I spawn I get this warning a few hundred times:

LogUObjectGlobals: Warning: Failed to find object ‘Object None.None’
LogUObjectGlobals: Warning: Failed to find object ‘Object None.None’
LogUObjectGlobals: Warning: Failed to find object ‘Object None.None’

How can I find out where this originates from?

This was asked years back, but I still get these sometimes and have to investigate. While debugging in Visual Studio, put a breakpoint in UObjectGlobals.cpp, in StaticLoadObject function (you’ll see where that warning string is built). When it hits, you can see the stack and parameters, which will lead you to the object that causes the problems.