Anyone seen this strange behavior before?

I set up three transfers to my main TivoHD. The first from the bedroom TivoHD and then two from the PC.
When I see the transfers are done, I look in the NPL and notice one of the shows (from the PC) isn't there. So I initiate another transfer. Back in the NPL the transfer didn't show up (or so I thought).
Come to find out it was transferring the show from the other Tivo instead of the PC. I had three copies of the same show from the other Tivo.
I had to unplug the bedroom Tivo to get the main Tivo to transfer from the PC.

Weird.