I tried almost everything in the profile but don't see my tickets. The Profile / activity tab shows just "No activity to display". The closest I can get is Account settings / Subscriptions, which shows tickets I get notification from - but I might have unsubscribed from my own tickets, so it might be that some are not listed.
PS: I have added new ticket now and at least I see that it is added to subscriptions automatically. But this is not sufficient.
