Editor Content remains visible when selecting a Static Mesh for a Cube Actor in 4.25 preview even after setting Engine content to hidden.
1. Create a blank new project in U.E 4.25 without Starter Content.
2. Select View options in the content browser, and uncheck Show Engine Content.
3. From the modes panel, drag a basic cube into your viewport.
4. Select the cube, and from it's details panel select the drop down arrow in the Static Mesh Category.
The static mesh options include the Engine Content files.
There should be no mesh options available.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-92338 in the post.