I’ve had the exact same issue the last couple of times I tried using Stellarmate /Kstars. It occurred two weekends in a row. Stellarmate as server with Kstars/Ekos running on my Windows 10 Surface. Kstars would crash on my surface some random number of captures into a sequence. I had to stay up all night both times continually resetting the sequence. I was running the latest nightly builds on both Stellarmate and my Win 10 Surface. I too feel like the crashing is rested to the FITS viewer. I’ve since swapped back to my M3 compute stick with SGP until Kstars proves to be more stable. Hope the new release is more or less bug free as I love Kstars! I may swap back to Stellarmate my next night out and test with the newest nightly build since it has been a couple of weeks.

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