I don't know if I can ask questions about third-party add-ons here, but here goes...
I purchased the SoftSymbols ETC 3.5 combo pack and dropped a S4-50* Lustr into my plot. Everything was great, but then the lines of the symbols disappeared. It happened after I created a class, changed the pen color and selected Use At Creation, then Yes To All. When I got back to my drawing, the S4-50* Lustrs are still there, but the lines of the symbols cannot be seen. I can't seem to undo (ctrl-z) what I did to get the lines to come back.
Any ideas?