Hey guys,
I unintentionally turned on the cinematic preview (the black bars on top and bottom, saying no level sequencer found). Now i cant turn it off… when i turn off the “cinematic preview” at the top left of the viewport, nothing changes.
Just figured out that my answer is obsolete. The easy way is to simply hit shift-d in the selected viewport.
Shift-d for default viewport.
Shift-c for cinematic viewport.
Using UE 4.20, my solution is to SELECT a viewport I don’t use at that moment, select the CameraActor I want to work with, so that when I select another viewport, making sure to not change the selected object by using the menu button in each viewport, the preview doesn’t follow and hide what I’m trying to edit.