A couple of weeks ago my Xperia 1 IV updated to Android 13 (build number 64.1.A.0.851). Since this update I experience issues with missing notifications. What I experience is as follows.

1. I have some notifications available.

2. I lock my phone.

3. I unlock my phone.

4. Now all notifications have disappeared.

5. All notifications come back the moment a new one is generated by an app (I can force this by opening my weather app, which generates then generates a new persistant notification).

6. Behavior of missing notifications repeats when I go back to step 2.

I have not been able to figure out what causes this behavior.