odd thing, the support website seem to lose all tickets (lets hope this is just a optical thing)
Are you signed into the proper account that made the tickets? 
yes all my accounts are merged, so it won;t matter which account i use, but in this case yes it is my main account (can see the gravatar picture on the screenshoot)
Just checked the same page and for me all my tickets are there.
Maybe try signing out then signing back in again if you haven’t did so yet.
Nothing else comes to mind right now.
just relogged, the ticket i made a few hours ago is there, all others are gone …
well they all closed so its not a serious issue, just stange.
For me solved (closed) tickets even from more than 8 years ago are still there so don’t think this is intentional but no idea what might be causing this.
Hopefully someone else might have an idea or prior experience with this.