Just updated my osticket from 1.10 to 1.11and had a problem.
Clicking anything marked red on screenshot gives you an empty queue.
I made a custom queue (green on the picture) which works perfect and shows all open tasks.
The same problem with "My tickets", looks like default queues doesn't work for whatever reason.
Another problem is a "From" field which is empty and it shows a subject of the ticket before.
User field is still filled inside the ticket, looks like "from" field looks for the wrong table in DB.