Noted an issue where long output filenames aren't saved properly (missing file extensions and missing w1 or w2 indicators). Not sure what maximum number of characters is but e.g.
"cf_phantom_with_simple_lesion_sino_2cmairgap_cw_start180" is too many (56 characters)
"cf_phan_w_lesion_sino_2cmgap_cw_start180" works OK (40 characters)
SIMIND does not flag an issue with this - it runs as normal and e.g. .cor files are produced as normal so it's not obvious until you go to use your projection data.
We should point this out in the documentation file