LogStreaming Warning: Failed to read file 'Common/Selector.png' and related errors - How to resolve?

General Issues and Bug Reporting UEFN Validation
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To track down the ‘Common/Selector.png’ error. I put a break point in the code and saw that it was coming from DocumentationStyleSet.cpp. More precisely this line of code:
Set(“ToolTip.TopSeparator”, new BORDER_BRUSH(“Common/Selector”, FMargin(0.0f, 1.0f, 0.0f, 0.0f), FStyleColors::Hover));

For the BORDER_BRUSH macro to work properly, the code needs to call this:
SetContentRoot(FPaths::EngineContentDir() / TEXT(“Editor/Slate”));

If you have access to the code you can add this:
SetContentRoot(FPaths::EngineContentDir() / TEXT(“Editor/Slate”));
at the start of this constructor:
FDocumentationStyleSet::FDocumentationStyleSet()

If you do not have access to the code, there is an open bug about this: Unreal Engine Issues and Bug Tracker (UE-237138)

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