I imported data collected using a 3x3 image shift pattern in SerialEM based on the unique identifier in the file name for each optics group using manually override exposure group at import. for examples files with name _0000 got assigned as exposure group 0, _0001 got assigned as exposure group 1, etc.
The various imported movies were pooled at the motion correction step and processed together to a refined particle stack that I would like to run global ctf refinement. At this step it complains of only 1 exposure group (0). I generated a star file from the parent NU refinement job and indeed while the data is from an approx even distribution of movies across all exposure groups (based on naming), however, the exposure groups id is 0 irrespective of the previous assignment.
Is this a known bug? Data was imported with cryosparc v2.15.0 and processing was carried out between versions 2.15.0 and 3.1