I may have discovered another bug connected to Add Cover and InsertImageSVG.
- use Tools > Add Cover to add a cover
- in the new file, make an html error — e.g., delete an opening <div> or <body> or <html>, etc.
- pink error box does not appear!
However, if I make an html error in any other file, the pink error box appears.
This is happening with any file added with Add Cover or InsertImageSVG. It is occurring with new blank epubs and existing epubs that already have files in it.
This is occurring on 0.9.991, 0.9.991-build 208 and 0.9.991-build 211.
It does not occur with 0.9.18.
I am testing on macOS High Sierra.
Let me know what I can do to help
