Bug report - build 180216

[BG Davis]

v.2.7, build 180216
1. Go to Last Frame (End) button does not work – has no effect.  "End" key on computer keyboard has no effect.
2. Stop button has a long lag before taking effect.
3. In "play filtered" mode the stop button causes playhead to return to start or to last point to which playhead was dragged.