Hi all. Can someone advise on a chronic problem I have when loading my darks using BPP. What happens is when I load the dark frames to the BPP, the window shows two bins, (see attachment). It only happens with darks and not with lights, bias or flats. When the Diagnostic is run prior to BPP, I get an error message saying that choosing Winsonrized Sigma Clipping is not suitable for one file. What's happening is that the only one file is being recognised and not the rest. I am running version 1.8.6. Regards.