When the small arrow playback (item playback) is paused, and it changes colour to black, it is not possible to do playback using the large arrow (frame playback). The same happens with the reverse direction, changing from (paused) frame playback to item playback.
When the small arrow playback (item playback) is paused, and it changes colour to black, it is not possible to do playback using the large arrow (frame playback). The same happens with the reverse direction, changing from (paused) frame playback to item playback.