Reply To: APP crashes stacking 3 lights (Linux DEB)By KeesScherer / Activity › Forums › Astrosoftware › Astro Pixel Processor › APP crashes stacking 3 lights (Linux DEB) › Reply To: APP crashes stacking 3 lights (Linux DEB) March 22, 2017 at 13:25 #13167 KeesSchererParticipant I don’t know, the last screen i checked was the “registering lights” (photo 3). I tried with the same settings but now with 3 Lights, 3 flats and 3 bias. That went fine, see attached photo: