LR mobile not filtering with 2 criteria (IOS)

This has taken me a couple weeks to identify, but it's a problem.  If I filter by flags, I get the correct amount of images.  If I filter by camera (alone) I get the correct amount of images.  But whenever I combine the 2 criteria (showing just the flagged images of a certain camera), the counts don't match.  I've attached some pictures to demonstrate.

I'm using locally synced images in case that makes a difference.

Syncing is complete, and backed up, according to or mobile.  I've tried to exit , close, and restart, but that doesn't help.

On Lightroom classic on desktop, the missing images haven't synced, and aren't flagged.