Enabling "Show Only Modified Properties" causes details panel menu to disappear. Only occurs on actors/components with no modified properties.
Regression: YES
Worked: 3249277 (4.14.3)
Broken: 3299760 (4.15.0)
Result: Everything disappears, including the search bar and options menu to disable "Show Only Modified Properties". Must select another component that does have modified properties for the menu to reappear
Expected: Search Bar, Property Matrix, and View Menu stay visible. In 4.14 there are a lot of unmodified properties that stay visible as well (transform, etc)
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-42428 in the post.