Background handler not called after some days

[QuentinSc]

Hello,

1. Context
   I'm using FirebaseMessaging.onBackgroundMessage() to register an handler in charge to display notification with flutter_local_notifications plugin.

2. Behavior

• Everything is fine except that users who didn't open app for days (dont know how many) no longer see notification.

• The app is not manually killed, just not in foreground for some days.

• If they reopen the app the can see notifications again.

• The FCM token dont change.

3. Question
   Is my background handler killed after some time ? Or it's a FCM particulary behavior ?

I can be the only one who wants notification working every day :(

Thank you very much!

[designervoid]

Same, but I don't using flutter_local_notifications_plugin
#6543