New Subtab not Showing -> New Sublist not Showing

Hey all, I'm trying to add a sublist to a custom record and am a bit stuck. I'm not sure if the sublist isn't showing, or that it's not showing because the subtab I created isn't showing.

Firstly, here's the subtab I'm trying to create. Note that a field I put into the subtab is showing on the record.

Then there's the sublist I'm trying to add to this record which also isn't showing, but perhaps it's just because the subtab isn't and fixing that will fix it? Just incase you can spot anything wrong, here is my sublist.

And its saved search