I forgot to add:
When I start the editor as superuser, it does not freeze or crash, yes. But it also doesn't create a correct toc. As in, when I click on "generate toc from all headings", it ignores some of those headings. I thought it was because they had no id, but that's not the case. When all headings have no id, it will take the first heading in each of the html files in the ebook, and ignore the rest.
I'm not sure how to get a better idea on that front.
However, when I start the editor from the terminal as superuser, there's also this message that pops up before the editor starts up despite this error:
I have no idea what to do with this information, because I *do* have libdbus-1-3 installed.
