Add to collection does not work

#1

Recently I find tracks on SoundCloud, then select “add to collection” and nothing happens. It doesn’t ask me to select a collection ( I have 3). Nothing happens and the track never appears in any of my collections. Please explain
VOX premium user

#2

I’m just another user but I noticed over the last couple days, my uploads weren’t working correctly (wasn’t doing anything, not even the “scanning…” bit). I finally logged out and back in this morning, and now they’re working.

Maybe they had some global issue re: saving things to the cloud drive?

EDIT: Scratch that; it’s back to not working.