I am new at shooting calibration frames and am attempting to shoot my Flats with Maxim DL 6. I have a Flat-Man connected under my guide cam and a regular SXpress filter wheel under Cam 1. The connections are fine. Under Autosave I set up my naming fields; dither is off; exposure is 2 seconds for Luminance. That's all I'm starting with is one filter. I click Start and get "Error starting exposure. Exception occurred. Exposure duration 2.802596... is an invalid value. Valid range is .001-3600." If I select radio button Single (as opposed to Autosave) the value shown is 1.4012.... Where is it getting these values?