I have not seen this listed as one of the many known bugs (such as the audio drops when reaching the end of the buffer on live TV) that were introduced this Spring and will hopefully be addressed with the Fall update that is currently rolling out. The same issue occurs with the Tivo remote and my Harmony One.
I don't believe I had experienced this issue until a few months ago. Anyone else see this? I tried searching this thread and others on other sites, and saw a few mentions of the issue but no real responses.