Facebook repeatedly goes offline/online

This only happens on my iPhone 14 Pro - Every time I open my Facebook app, it repeatedly says “you are offline”, seconds later it says, “your network connection has been restored”, then offline/online repeatedly forever!

This is NOT a network issue. It happens regardless of whether I am on Wifi or cellular and on ALL Wifi networks including my home one, which has excellent bandwidth and Wifi coverage.

This is SO annoying as the messages often prevent me from clicking a link. I literally have a fraction of a second to click between the messages. I have uninstalled and reinstalled the app. No change. I am sure that this has started happening with a recent IOS update - I have had this for several iOS versions and I am currently using the latest version 16.4.1 and have automatic updates enabled.

This issue happened a while back after an iOS update then after a subsequent update it was resolved. It started again with iOS 16.4.