I did upload document to the Bug site, this has been interesting, went back to 1.5.2 worked for a bit then another type of error #6, tried 1.5.4 daily, worked like a champ, no crashes, had to re format a few things, painful but tolerable, this morning I tried the latest file made in 1.5.4 in 1.5.3 App-image and it work perfectly (wonder if the appimage was the issue?)
my file is a 44 page local (small town) phone book, can I post it here?