amendolajamie wrote: I've pulled r1.8.1 and rebuilt. The indi_asi_ccd driver now shows SDK version: 1,14,0715 which is the latest. Given the same settings I'm still getting the endless loop. So I tried a suggestion from another thread. I reduced the image size, and now it works in 16bit raw. This is at 3264x2464. The native resolution is 4656x3520. So this is not a very good solution, but it at least seems to be pointing in some direction... I may need to try different PC hardware, or try and tweak some settings.