Why can't I get Deep Rock Galactic with Game Pass?

I'm from Romania, Eastern Europe.

Running on Windows 10 (64-bit).

Just bought the Ultimate Game Pass, yesterday, from the en-IE store.

Played a bit of Grounded with some friends, all was well.

We talked about also playing Deep Rock Galactic, as they both already have it installed, via Game Pass (one is on PC the other on Xbox) and I just can't get it.

First I tried getting it both from the Xbox App and the web store ; The "Play with Game Pass" button in the Xbox App would just take me to the main page of the store, and going to the web store and selecting "Install To (with Game Pass) -> PC" would lead to the same result.

Checked my Region settings in the Microsoft account settings - they were already set for Romania

I did a Reset of the Xbox app from the Apps & Features section and now the App correctly reflects the fact that I have the Ultimate Game Pass (it didn't, before)

However, I also get message saying "Xbox Game Pass is not available in your Region" at the bottom of the app window, DESPITE having already purchased it...

And now the game keeps showing up when I search for it, however, the only button left is just "Not available"

My friends are also from Romania but do have the game...Can someone please help?

:)