I see the following message all the time, and find it the diametric opposite of helpful:
"Highlighted snap line(s) cannot be regenerated."
Yes, I do have snap lines on my views, but there is nothing whatsoever highlighted, and I can't figure what lines it refers to. It's not preventing me from doing anything, but I find this type of thing annoying. I don't like having warning messages spewed out when I open drawings. Is there any way to find out just what these vague messages are trying to tell me? Once upon a time, the snap lines that became disconnected or otherwise ambiguous would be shown in a different color, weren't they?
This same question was asked in 2010 (see below) and received no answers, perhaps I'll be lucky this time.