For some reason, I am just getting a black image when using frame and focus. I can stretch fine after the image is downloaded but as soon as the next one comes up it is black again. I have been using sgp for years and it has never done this before - latest beta. Is there some new setting? The settings I am aware of affect regular images but not frame and focus.
Try disabling auto stretch and setting your own endpoints. Something in the auto stretch algorithm might be getting thrown off. I’ve had to do this occasionally. What generally happens is I forget to uncheck the “Auto Stretch” option on the Histogram and it keeps auto stretching the next image, undoing my manual stretch.