QHY9 Mono. But the camera hasn't changed. The only thing that's changed with this imaging setup in the last year is that the "Analyzing Star Data" message has become noticeable and I've kept up with the SGP builds by installing the latest beta as they've been available.
I can't say for sure that there is causation from the Analyzing Star Data, but it's the only noticeable change. Sure, it's an old laptop, but it ran fine up until I started noticing that message.