@KevinH — your perseverance in squashing bugs, no matter how obscure, is impressive
The steps to reproduce the crash are not part of my normal workflow, so avoiding it is no effort. I only stumbled on the crash by accident. (I emailed you the crash reports only because you've expressed a desire to see these crash reports.)
Thanks as always to you and also DiapDealer for all your time and effort making Sigil the excellent program that it is.