Mattermost Client 1.12.0
Mattermost Server 5.13.0
Sometime ago I’ve raised an issue regarding messages not appearing in the client app.
Now I can easily replicate the issue.
It happens when iOS displays a new message notification, the user opens the MM app but replays quick enough not giving enough time for the message from the notification to get displayed.
So the user sends a new message and the previous pending message never gets displayed, causing a gap in messages.
I think this is a race condition in the code. It seems sending messages is stopping retrieve new messages from happening.
Please have a look. I think this is a serious issue and should be assigned as high priority.