Missing brains in functional fMRIprep output

I ran fMRIprep on multiple subjects and going through the reports, I noticed that in a couple of subjects there are some brains missing from the output:

It’s in some of the anatomical segmentation, susceptibility distortion correction, and ROI outputs. I checked the raw nifti files and everything there looks normal. Does anyone know why I might be having this trouble?


Are you using Firefox or Google Chrome to visualize them?

I was using Firefox, but I just checked in Chrome and all of the brains are there as normal. Thanks!