Hey Jocelyn,
The column links to sort the list are not working anymore.
This must have have been going on since Feb - but I've just noticed it. It's a bit urgent fix for me, I have a component launch on Friday and people were using this feature.
This happens in the sandbox too.
The thumbnail "Select to sort by this column" is displayed - but when you click on the column title of list - it does not sort.
The dropdown filter lists for sort order still work (but I usually hide these). The bug seems to be just with the Column links.
Cheers