Been there and done that-but will report it again today.
It is not a consistent problem so I think it is quirk/bug.
Very frustrating, but not significant enough for anyone to find a way to help.
One of my frustrations with the tech support is that they are great when they are fixing "known" issues-otherwise the help is inconsistent. Except for one tech who consistently has not seemed interested, everyone else is very solicitous--that willingness to try goes a long way.