Silent Pictures don't seem to work properly with motion detection, though the docs seem to suggest it does. It's likely I'm doing something wrong, but I think it may be related to the LiveView being essentially paused until a long half-shutter press occurs. I think the motion detect module uses the LiveView to compare frames so it does take a single photo and then just stops after that. Any help appreciated, looking at the code now in silent.c and wondering if it is line 1162, in silent_pic_take_fullres() where PauseLiveView(); is called? Any help appreciated. Thanks.
Just verifying this appears to be an issue specifically in Full Res mode for Silent Pictures - simple mode doesn't seem to disable live-view after taking a pic.