Hi @steel-rat,
have you tried from Widgets admin page? As Customize > Sidebar is more about the active theme.
I had tried that before, but nothing was showing up at all.
I ended up installing Classic Widgets, and that fixed a lot of issues with those.
The permalinks also had a custom value with an “index.php” inserted at the beginning. No idea how that got there. But removing that made things much happier.
@steel-rat,
So is there an issue related to wpForo know or they’re fixed now?
Seems to be fixed. But still unsure what happened in the first place.