What I do when something like this happens is to click the back button without releasing the button.
This pops up a little overlay menu which shows the complete history for the tab your are on.
This won't correct the problem but at least it shows what is going on and you can select where to go (more steps for example).
Also what I noticed is that the forum dynamically loads additional pages while scrolling down.
So it loads page 2 when there are more pages without having to click on the 'next' button. I guess this can screw up the browse history for the back button.
Last edited by MichaPau; 04-13-19 at 01:07 PM.
Reason: added more text