I’ve made trigger box, and added blueprint to it.
Tutorial has shown itself, but one of its pages displays incorrectly (raw XML markup instead of formatted text and graphics).
system: OSX El Capitan
Hello,
I have reproduced your issue and entered a bug report, which you can track here: Unreal Engine Issues and Bug Tracker (UE-36128)
Have a great day!
I also have this happening. Usually it’s pretty easy to tell what it’s supposed to say, and in cases where an image is missing it’s unfortunate but not usually vital. The example posted here is what actually brought me over to see if a bug had been reported.
Thank you for adding it to the bug tracker Sean! 
