I have been using my asiair with dslr for some time, two nights ago I went to use it with the same equipment and received a message to update firmware and app which I did, I then tried to do a PA but the unit could not plate solve, I tried to take a photograph and was successful with an exposure of 1 sec, anything over that the green band around the app shooting button went through it normal routine but the camera shutter would not open. Prior to attempting the PA I had successfully taken a number of 5-10 sec shots in the process of focussing. Using the asiair focus I just got very rapid fire 1 sec shots, this was done after the attempted PA. I tried different cameras and cables to no effect. Any help would be appreciated