CGO APP Problem - DNG files

[f.tarselli]

Hi to all, i'm trying to use the steadygrip with my CGO3 camera,but in the picutures setup, when i chose the output format and select the DNG the app freez. If i try to exit the menu and return to the camera view there is no preview, it's all just black screen.
Does anyone know how to solve this problem?
I've seen that the DNG kind it0s the best format for the post process of images, right?

THX