Because KStars has rudimentary functions for planetary imaging I am using oaCapture at the moment. As CCD I am using DMK21. Here is how I get to "Segmentation fault":
1) Start KStars -> Ekos;
2) Connect everything I need, including DMK;
3) Start stream from DMK - all good;
4) Disconnect DMK from Ekos;
5) Connect DMK in oaCapture and recording;
6) Disconnect DMK from oaCapture;
7) Connect DMK in Ekos - all good;
Press Stream on and... crash!