Motion detection on DCS-950G does not work

I'd like to know if other people have those same problems as me:

1) Adjustable window disappear

Repro steps:
- Activate Motion in the motion detection page.
- Setup a zone (smaller adjustable window in the camera view). activate it and save it.
- Change page and come back in the motion detection page.
- When you click on the button zone you just setup, the adjustable window no more appear.

If you don't activate the zone, the window is till there when you click the button zone.

2) OpenMSD

Repro steps:

- Activate Motion in the motion detection page.
- Setup a zone (smaller adjustable window in the camera view). activate it and save it.
- Click the OpenMSD button.
- No motion is detected, no matter the sensitivity or percentage presets.