Following an updated version of PixInsight released yesterday, and a bug fix release today, data files produced by SGP are causing errors in the ImageIntegration process. The errors are due to the format of the SITELAT and SITELONG keyword valuess in the FITS headers of the files produced by SGP. The PixInsight ImageIntegration process generates errors, but completes and seems to generate correct results despite the errors.
Apparently previous versions of PixInsight ignored these FITS keywords in the ImageIntegration process, but now it is attempting to parse the keyword values as numbers, which produces the error messages. I posted about the error on the PixInsight forum, and the developer informed me that the format of the keywords is wrong in the data files produced by SGP. He cited the SBIG proposal for FITS keyword definitions, which states that the SITELAT and SITELONG keyword valuess should be in the format DD MM SS.
Here is a link to a document containing the proposed keyword definitions::