Possible fix for you if you still have to go to Index to get here. Just fixed my issue of…
Would go to Catalog and all breads would appear, then the short wait for the "search" option to show, all of the breads would disappear.
Check your computer default programs. Somebody changed my browser to an unknown default program - I use Brave. Rechecked Brave. Also note that my default email program had been changed to same, of which I clicked back to the one that I use.
Then, I went back to 8ch qresearch and clicked options, of which auto update was checked, but hadn't been performing for this specific issue. Then a notice popped up at the top area of my browser to allow auto update. Clicked allow, and the Catalog is now working!
Can't find who is doing this crap yet.