iPad Pro M4 : Cannot post a comment on FB Live Feed posts .

We participate in online FB Live Feed auctions using our iPad pro’s . However lately we are unable to bid, see others bids or comments. We can open the App on our iPhones and everything works fine. Bids, bidding and commenting all good. We have compared all settings between the devices and everything is the same. This is a recent problem that has developed and cannot find a solution. We have 5 devices in use 3 of them are iPad pro’s (1 new M4) and 2 iPhone 13 Pro Max. iPhones and a desktop work fine , but none of the 3 iPads allow us to send our bids or comments . Live Feed video is fine .. just no allowed participation. We are members of this FB group and all notifications are turned on for devices. This is a recent problem, iPads have worked fine in the past. Help !!