Came across this tryout <https://www.youtube.com/watch?v=1AvfMMjHX-M> of yet another open-source video editor, called Olive. The project is only about a year old, but it’s looking very promising. I recall Thomas wanting the ability to enable/disable clips in the timeline; I believe this one can do that. It may still be under development, but for what it’s worth, the reviewer didn’t suffer a single crash or loss of work during the video. ;)