[Stevex]

Since I am here and motivated I will mention one more point for completeness
When I am using the editor and the following conditions apply:
1. I have many tabs open, i dont know but say 20+
2. I start to edit a url for example the xlink inside an svg
Then sometimes the editor will become completely unresponsive, not using cpu, just frozen. Nothing on task manager, no cpu or io.
The only way out is to kill (usually) the first calibre worker process from task manager. Then everything springs back to life though the previews become unpredictable.
Ps windows 10