I'm running Yamcam 0.3.7 on Windows 7 64-bit, using a Hauppauge WinTV HVR-1600 internal video/TV card.
I'm using Yawcam for FTP and local file save on a 10 min file / 20 min FTP interval, to run a weather webcam. Camera is a NTSC low-light camera.
Some number of hours after Yawcam starts, it stops capturing new images and instead keeps saving/FTP the last image it captured (a "stale image"). If I have the preview window open, the image is old and static (no clouds moving, for example). If the preview window is not open and I open it, the preview is BLACK.
If I close and reopen Yawcam, it goes "live" again and starts working normally for some number of hours.
I have yet to determine what that number of good hours is.
The second related problem is that when it stops capturing a new image and goes to saving/FTPing the old image, it still puts a current date/time text overlay on it. For example, during the day my website might have a webcam picture of stars from the middle of the night (last good image), but because it just uploaded it, it will have a date/time overlay of 3pm in the afternoon!