shiftless
Oh my, what a complicated arrangement they've created at that stadium.
I'm no expert on Android intents / events / actions/ IPC, to be sure.
This bit catches my eye:
I have given these apps full permissions
Did you also try toggling the following Exploit Protection settings for each app? Its different from Permissions.
Exploit Protection Compatibility Mode -> On
Hardened Memory Allocator -> Off
(Etc)
Last check - this is all happening on the Owner profile, right? I wouldn't be surprised if this doesn't work on secondary profiles.
This thread might also be useful, someone mentions tickets in Toronto there:
https://discuss.grapheneos.org/d/12595-google-wallet-anything-for-just-passes/8
They ultimately recommended Catima and Stocard.
Although its a slim hope, seems like those apps need to be passed files which Ticketmaster won't provide.
Another thread here:
https://discuss.grapheneos.org/d/16034-anyone-else-unable-to-add-tickets-to-google-wallet
If all else fails, I think this one is worth finding a separate device for.
Maybe a cheap or old stock android device of yours, for purposes like this?
Better to give such invasive permissions to a bunch of corporate apps on a secondary device anyway, IMO.
The ticketing bs at some sporting events can be brutal, best of luck.