SGP stops with Nikon D5500 dslr!

Hi
Tried 10,20 and 30 sec delays still crashes at the point of taking the shot. Camera connects fine and all seems ok until taking the shot??. Not quite sure what to try next?. I have the dslr set to manual which I assume is what SGP wants it set at? I do take short exposures sometimes when needed maybe SGP not quite right yet for my model? Didn`t like 30 sec exposures either!
regards
Steve