Hi Bob, I ran the focus offset script again yesterday after your patch removal. The script now runs fine until it gets to the Ha filter, it fails to plate solve on this filter and continues with the script and eventually failing due to the Ha filter focus failures. I noticed that during the run the filter before the Ha is the Blue filter which focuses fine, ACP tries to use the same star for the Ha filter and fails as ACP reports that the star is too weak. How do I get ACP to focus on a brighter star for the Ha filter? Thanks Jamil