Start playing recording while PiP'ing, starts in weird spot (not at beginning)

I'm reproducing this from memory, so I'll correct later, if i'm misremembering.

To reproduce:

  1. start to view something from guide
  2. Go out to library (PiP on)
  3. Select/start recording (populates the PiP window)

You'll notice the recording starts somewhere in the middle - it seems to vary.