Yikes! You are giving me too much credit as this is beyond my capacity. I find it odd that you can’t reproduce the problem. Is this the way we have configured our respective systems? Just you have all the info, I am running Stellarmate from a 1TB SSD that I partitioned 64GB for the OS, and the rest for the Astrometrics folder and Picture Folder. There is about 40GB free on the 64GB partition. I am using a ZWO ASI294MC Binning 1. There is simply no doubt that here the RAM allocation reaches 3100 MB after which performance is severely degraded.

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