Today my QHY294MM Pro arrived. I was able to check what goes with the ROI and solve the problem (its was necessary understand when binning coming from FPGA or not). The ROI is now working correctly. Thanks to Stefano Seveso from ArteSky for providing me with the Camera.
I created a new Version 2 native ASI driver while leaving the previous native ASI driver unchanged.
It seems to me the only solution I have to avoid malfunctions resulting from new versions of the SDK for the other cameras. Version V1 use the consolidated SDK 1.16.0, version V2 the latest available from the ASI site.
If you have any considerations I would be happy to read them.