Flying LHR-HND tomorrow using avios & 2 for 1 voucher and had paid seat reservations in club.

Did online check in on the app this morning and got boarding passes for all passengers but when I open the app and website it doesn't show the boarding pass and tells me to check in again.

If I try the online check in process again on the website it gets to a point where the boarding passes are visible and then the only option I get is 'cancel and exit check in'.

If I press check in on the app it goes mad for about 30 seconds then tries to add a boarding pass to my wallet. The app then updates to show the boarding pass button but then updates again back to the pre-online check in and shows no seat selected.

As it stands I've got boarding passes for all passengers in club and think I'm OK but slightly worried about turning up at the airport to find a downgrade or seat move as I'm travelling with a child and aware that they've cancelled this flight multiple days this week.

Is this just BA systems gone a bit mad or do I have an issue?