I created a "smiley face" highlighting style using a png image file that I created in Paint, to place a red smiley face after the highlighted text. I applied this style to one word in my resource (All Roads Lead to the Text, by Dean Deppe). Then I modified the style by substituting the Wingdings smiley face (via the "Text After" option) for my smiley face drawing. When I saved the modified style, Logos 5 crashed.
I re-opened Logos 5 and it opened to the way the desktop was set up at the end of the session before the crashed session (I think?). I tried to open All Roads Lead to the Text, and Logos 5 crashed again.
Log files attached.
8764.Logos.log
7178.LogosIndexer.log