Gizemquea

I actually mean one whole line of _text_. I can provide screen shots of my exact settings and their result if needed - it will just take some time since...

I have created a small [test project](https://drive.google.com/drive/folders/1_7iWt09fuIxmwosTwUHlb_YRbV13C-bd?usp=sharing) for this issue: The folder also contains two sample screenshots, one with and one without preview scaling.

> I made a few changes to support this including fixing switching between external monitors that works for me plus one that might improve stability by stopping the engine sooner...

It is an improvement, but there is still a problem. If I set an external montior and switch back to none, I get a strange kind of video overlay on...

OK, shotcut 20190727 really behaves better, although it is sitll not perfect. Open GL: Switching external monitors seems to work in arbitrary configurations, the strange overlay is gone, the green...

Well, at least the problem does not result in crashes/lost work etc. As annyoing as this is from the end user's point of view, it probably doesn't justify a major...

Thanks for even considering a fix. The issue is strongly depending on project size. In my usual projects this takes several seconds (and it is a reasonably fast machine) -...