Howdy-

A sidenote-level comment here:
As of Jan 20, 2022 (and I think >=AFNI_22.0.04), there the APQC HTML's vstat block should contain up to 5 statistic/stimuli images. Thus, if you are "only" seeing full F-stat, I suspect that with a more modern AFNI, you would see several Coef+stat images in the vstat block---this might help provide more information. E.g., if the visual cortex should be strrooongly associated with a particular stimulus, and that doesn't show up, perhaps the subject fell asleep?

I mention this because it appears like you *only* have Full Fstat in your vstat section (as I see a silver line at the bottom of the image, denoting the next block).

Of course, this might not resolve the issue here---but it should be a more informative QC, anyways.

--pt