Summary of the scenario leading to the flicker * User 2 follows the entier wiki * User 1 creates a bunch of pages * User 2 check the notification counts
When not flickering * The notification bell display a count red pill, and User 2 is able to get access to the notification counts
When flickering: * The notification bell does not have a red pill with the count
Hypothesis: # something goes wrong when saving the "watch whole wiki" step. Therefore, all the events produces by User 1 are ignored # something goes wrong when loading the notification bell and the count is badly loaded or badly displayed # the event produced by User 1 are still waiting in the queue when User 2 goes to check the notifications (can probably be ruled out, see explanations below) # the user notifications are persisted correcrly but are not correcrly used on some part of the event to notifications process (e.g., some cache is not correcrtly invalidated)
Currently conclusion: * we tried to wait for the event stream queue to be empty before checking the notifications count, to change the priority on the thread in {color:#000000}UserEventDispatcherScheduler{color}, and to greatly increase the number of attemps and wait time between attemps in {color:#00627a} waitOnNotificationCount{color}, all with the same result, waitOnNotificationCount is something returning a count of 0 * I also checked the notification configuration of users on instances where the test failed. From my current observations, the values seems corrects
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