Mask is Unable to detect people

I attached snapshot and system info and under review.  I did earlier but moderators didn’t publish my image

Building on Johan’s reply, attach the photo here (don’t do a screenshot).

Also, please do the LR menu command Help > System Info, click the Copy button in the upper right corner, and paste into your reply here, so we can see exactly which versions of hardware and software LR thinks you're running and important LR options that are set.

Without seeing the image and/or knowing what hardware you use, our guess will be as good as yours (meaning we have no clue).