RANKX Works Halfway

Hi All, I'm using RankX to rank distributors by orders. When I show a table with the list, it works as expected. However, I am working on a dashboard and want to filter on a distributor, and see their rank among the total. When I do this, it doesn't work. It always shows 1 of 1. What the heck am I missing?

Here's the formula: 

Rank Core Orders $ = RANKX(ALL('Link Table'[Distributor APR]), [Total Core Orders $], , DESC)

[The link table contains all distributors and is used to link all the fact tables together on that one distributor key.]

I'm trying to show the distributor is ranked X out of Y:

APR Rank Text = [Rank Core Orders $] & " of " & [APR Count]

Displays properly with NO slicer selections AND in table format:

Distributor   Order $     Rank

A                   $500           1

B                    $450          2

C                    $300          3

D                   $299           4

Card showing Rank shows 1 of 115, when nothing is selected. (I'd rather have it be blank.)

But when I click a slicer to select one distributor:

Everything in the table goes away except the distributor selected.

In addition, the Card showing the rank, now shows 1 of 1. I thought the ALL in the formula would prevent this behavior?

Rank Core Orders $ = RANKX(ALL('Link Table'[Distributor APR]), [Total Core Orders $], , DESC)

What am I missing? Any help is appreciated. Thank you!