Doubled notification

[waclaw66]

Describe the bug When single message is received two same notifications are shown for a little while in a row.

To Reproduce Just receive a message using matrix.org pusher.

Expected behavior Single notification for a message shall be shown only.

Screenshots https://user-images.githubusercontent.com/15554561/135752592-03af6081-2fc8-42f2-8c41-26fa578685d1.mp4

Smartphone (please complete the following information):

• Device: Xiaomi Mi9T
• OS: Android 11

Additional context

• App version: 1.3.1.sc45-test14
• Store: Google Play
• Homeserver: own Synapse instance

Upstream relevance

• Does this issue exist in Element Android? Yes: https://github.com/vector-im/element-android/issues/4152

[SpiritCroc]

I have not seen this on my devices yet. Does this always (for every single message received) happen for you? Have you changed any of the notification settings? @p1gp1g any idea why this could happen for us, but not for upstream?

[waclaw66]

I have not seen this on my devices yet. Does this always (for every single message received) happen for you? Have you changed any of the notification settings? @p1gp1g any idea why this could happen for us, but not for upstream?

Yes, it does for every message I receive, no matter native matrix or bridged. I have tried to re-register pusher additionally, but it didn't help.

[waclaw66]

I tried to log off and sign in again. The problem resists. Then I've turned on notifications on Element Android, suddenly I receive doubled notifications on Element Android too :D I seems like upstream problem. Element Android is so buggy. Btw. I have discovered meanwhile that cross signing verification doesn't work between two Element Android devices :[ The new session is unverified for other users, but verified for the user.

[waclaw66]

I think the issue can be closed in favour of https://github.com/vector-im/element-android/issues/4152.