I've noticed on a few occasions that when sitting at the S3-whatever and I transfer a recording from the Roamio, that when I select a 2nd program to transfer (to begin after the first finishes), I will get a message "Stop/Cancel Transfer" even though this is a new/different show or recording. Obviously, I don't know what "show" is referring to, the 1st one now transferring or the one I now want to transfer.
If I skip (don't cancel) and move on to another show, it will react normally and put it on the todo list to copy later.
This has happened 3 different times. First show transferring, an attempt to transfer a 2nd show will alert "cancel..."