Mine was the same, i went back into the 'memberships' option on the site as that's the only part where the 'download NFC' option doesn't stay greyed out, i downloaded it again and it magically updated with the next game info for the friendly on Sunday.
Interestingly my lads didn't do that it downloaded the info straight away, he has an iPhone i am on Android, not sure if that makes a difference.
Also his pass states the name of the oppo ect.. mine on android just states the turnstile to enter and the seat number i have booked . Worth trying to download the pass again though and see if that fixes it for you.