In response to your second try, I opened the level blueprint and clicked the tutorial button in the level blueprint window and it opened just fine. If you click the button in the editor window then it will still open in the editor window (with the blueprint window on top).
The “click here” link in the “Blueprint Macro Library Walkthrough” and not being able to start a new tutorial are however both issues and have been reported to our internal tracking system and should be fixed in a future update to the engine.
Clicking the tutorial button from the level blueprint automatically starts the Level Blueprint Walkthrough rather than opening the Unreal Editor Tutotials menu. Do you see the same behavior in a new project? Also, which version of the engine are you running (4.5 preview, 4.5 from the Launcher or 4.5 from GitHub source)?
Can confirm. Same behavior for tutorial button in Blueprint, Sound Cue, Texture view and other windows.
More of that. Under Tutorials settings Most of tutors set to ‘none’ (even if they’re set to proper one, reselecting them cause a bug). If You set Launch or Attract tutorial to proper one and press - Use, You will get infinite loop of warnings in output log while Dropdown opened (clear path fixing problem):
Thank you and for all of the information. The issues with the tutorial functionality has been submitted to our internal tracking system for further investigation and a solution should appear in a future update to the engine.
The original issue for this, UEDOC-395, was fixed for 4.6. If you do have an issue with tutorials, please create a new topic and include as much information about what’s happening on your end to help investigate the issue.