Sharing to Facebook doesn't work from Photos

New iPhone 13 Pro, with 15.1. From the Photos app, if I tap share, then Facebook, the screen makes a brief bounce, then nothing happens. I can share to Messages, email, and Notes, but Facebook and Messenger just bounce. I can share from within the Facebook app, so it does not appear to be a problem with access - at least from that direction.

My husband has the same phone and iOS, and is able to share to Facebook from the Photos app, so it should work on mine. I have rebooted the phone, turned off photo access to FB in the settings, then turned it back on again. The FB share icon still showed up in Photos with it turned off, so maybe there is somewhere else it needs to be reset?