Here’s an example that seems broken:
If you visit this page:
https://dev.epicgames.com/documentation/en-us/unreal-engine/remote-procedure-calls-in-unreal-engine
The dropdown on the left shows engine versions back to 4.27. These type of dropdowns in the docs used to mean that any versions listed in the dropdown had a version of the page. Now if you select 4.27 it boots you out to this page instead:
And your back button won’t take you back to where you were reading.
When you click the back button, it leaves you on the networking-and-multiplayer wrong url but does a refresh of the page, and leaves the forward button greyed out. If you click the back button again, it still leaves you at networking-and-multiplayer wrong url but now the forward button is available. And if you click the forward button, you are still stuck at the unrelated networking-and-multiplayer page.
Aside from the back button navigation fixes, if the dropdown is now more of a global version preference selector, I think it would be good to still have some kind of visual indication that there is a version of the current page available even if you can still select versions where one isn’t available, like make all the engine versions in the dropdown be in bold if there is a version of the current page. And when a version without the current page redirects you somewhere random, it could have something like a popup saying there wasn’t a version of the page you tried to reach instead of just taking you to a random place further up the documentation heirarchy with no indication why you landed there.