Quote:
Originally Posted by theducks
Remember, the preferences folder is now being shared (by a multiple you  )
All sorts of confusion on who's version of the current settings is really current happens with 2 sessions because Sigil write the current state only when it closes a session |
Then that is a bug, because Sigil is permitted to open multiple times.
calibre, for example, should not be run multiple times, and as a result it will lock itself against future instances.
Sigil, calibre editor/viewer, are designed to open against multiple books, and it should be safe.