Must be pretty intermittent (or dependent upon as yet undetermined conditions).
https://www.mobileread.com/forums/sh...d.php?t=314249
Just so you know: Qt 5.12 has its own new Sigil affecting bugs. Welcome to Qt's
3 steps forward, 3.5 steps back development strategy. They're always eager to leave the old line's unresolved bugs behind to languish in order to rush the new line's new crop of bugs to production.
