The last couple of days I’ve had a number of instances where I click the preview button and I get a black window. It was by sheer coincidence that I noticed double-clicking on the left-hand corner highlighted some text “Not Found”, that text is black writing on a black background.
There are times when this is more prevalent and there are times when I may not see it for an hour. It is usually present after I have cloned or created a new project and it happens frequently within the first hour or so.
Sometimes it might take 2 or 3 times to click the preview button (and close) before the app preview appears other times I might do this a dozen times and give up in frustration.
I have the same issue on 2 different computers with 2 different browsers.