it doesn't happen all the time ...I will try to capture it next time...but it may be a while. I will state my version and build and attach the diagnostic file.
BTW I found out about the close-reopen-the-program solution from someone who posted about this phenomenon for an earlier version of PD. You can use "ghost tracks" as a search in the forums to find the post. Version 14 is the first version in which this has happened to me.
I've got other buggy issues...does it make sense to uninstall and reinstall?