I too have a QHY163 (mono version though) and am using the same version of the SDK you are using with no issues. I would like to see temperature control a little tighter but +/- 0.3 is ok. Other than that, no issues.

Perhaps there are other issues: power, cabling, USB ports, etc. From your sig, I noticed you may be running on an ARM system (RP4, Tinker Board), I've moved from ARM based systems back to an Intel based NUC with much more success and stability. The newer cameras with USB3 are more demanding and push the limits of the ARM based systems.

Regards,

jmh

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