Power bi Table in Data view not showing in Model view

Hi,
Can someone suggest why a table can be seen in data view but when I go to model to create connection one of them is missing?

Richard.

Hi Rory,
I think it may have been , I closed everything, and went back in and found it.
BTW, the blog you directed me to was really interesting, got it working but it's not the easiest method, when you start nesting filters and the using 'all' it gets a long way beyond me.

RD