Not only that as bits posted.
My wife's and my Accor Plus membership year ends 30/9/2025 and we decided against renewing. The Stay Plus night becoming 1 paid+1 free was the deal breaker for us.
So we were using our cards for a last time yesterday(30/9/2025), for both lunch and dinner. After paying for lunch(4 diners) with our 2 cards at around 3pm, as soon as the membership numbers were copied down and 50% discount applied, my digital card in app has changed from "Accor Plus Gold Member" to just "Gold Member", with a slightly different set of membership number shown on digital card. My wife's card was not affected at that point and still showing "Accor Plus Gold Member" and I asked her to screenshot that immediately.
Then at dinner(just 2 diners as I didn't screenshot my Accor Plus digital card before the changeover and would not get 50% off if 4 diners), when it came time to pay, my wife's account has been downgraded to "Gold Member" as well. And the waiter wouldn't provide Accor Plus discount as he said my wife's digital card showed that she is not Accor Plus member. I objected and the waiter asked us to speak to the cashier person.
Then I showed the cashier the screenshot of my wife's digital card we captured before the downgrade. The cashier asked to "update" the card and pressed on screen and found that it was a screenshot, and declined to apply Accor Plus discount. Finally I told her that the screenshot showed the expiry date of 30/9/2025 so we are still eligible to use the benefits for dinner on 30/9/2025(and having dined at the same restaurant using both our Accor Plus cards 2 days prior, proving we have membership 2 days ago and therefore should last until 30/9/2025 probably helped). With this the cashier accepted my argument and applied the 50% discount.
So no real loss for us overall, but I don't think it's fair for me to have to fight for the discount and also the outcome might have been quite different if I didn't ask my wife to screenshot her Accor Plus digital membership card before it was downgraded some hours before midnight.