That has been discussed already.
It is a known problem that seems to be session related.
The keyword here is “token”, look for that in recent posts of this forum.
I’m not sure this is something the staff here can solve in any other way than updating the forum software, but that is quite some work and requires downtime for the forum (i would guess an entire day), after which unavoidable more bugs will pop up…
So even if there would be a known solution for this, applying it will take good consideration, planning and time.
MAS3:
That has been discussed already.
It is a known problem that seems to be session related.
It's the totally garbage forum software. If you put the computer to sleep, restart - or presumably close the browser (which I rarely do), you get hit (somewhat, but not entirely randomly) with this terrible bug. You just have to remove the "token" (from each URL where you see it) and it will then bring back correct URLs - as long as you do not let it go to another tab which still has the token.
MAS3:
I'm not sure this is something the staff here can solve in any other way than updating the forum software, but that is quite some work and requires downtime for the forum (i would guess an entire day), after which unavoidable more bugs will pop up..
So even if there would be a known solution for this, applying it will take good consideration, planning and time.
Clearly the "staff" here have no idea why it is happening and are unable to resolve this with the writers of the crap forum software. And clearly it is simply too difficult to migrate to more reliable software - which I absolutely understand.
I did see this, once or twice.
Not a problem for me so far.
But that still makes it a bug.
Installing / migrating to another software has other consequences except lots of work and time to spend.
This SMF is a free software, and that will have had some influence in choosing the software i guess.
I have no idea about costs for other software so can't comment on that.