While adding Flat files to PixInsight's WBPP this evenng I noticed a number of files are missing the FITS header "Filter" entry. 16 of 50 Green files were missing the keyword, 11 of the Blue also. (haven't done the others yet...). The order isn't the same in each case. I can add the keywords but it's time consuming.
Any idea what's happening? The log file seems to indicate all is proceeding as expected.
KStars 3.5.7 Stable, Build: 2022-01-24T09:12:30Z on Kubuntu
Sorry, should have mentioned the camera in question is a QHY268M. The flat sequences were 30 to 50 images long and were entered manually in the Ekos capture screen. L, R, G, B, and Ha followed by the flat darks. Flats set for 32,000 ADU.