I am using UE x64 version 4.7.6-2513093 on Windows 8.
When in the Editor I go to Edit->Project Settings->Maps & Modes tab and click on “Browse to Asset in Content Browser” button for Default GameMode field, nothing happens.
This happens for all projects that I tried and no matter what value is in the field, default or not.
I tried it on a sample project from the Marketplace and I can manually find the GameMode class in Content Bowser.
All other “Browse to Asset in Content Browser” buttons work as expected.
I am new to Unreal Engine so I’m not sure whether this is a bug or it should work this way.