X1 DVR pops back 15 minutes on pressing FF

When I'm watching "live" TV, the X1 DVR can buffer the previous broadcast of the channel up to two hours. I often watch CNN this way, for example, watching the broadcast from one hour ago, and like to fast forward past or stories I'm not interested in. However, for the past month or so, if I press >>, the DVR pops back 15 minutes and fast forwards from there. This looks like a glitch to me. Will it be fixed at some point?