Looker Studio drop-down list is missing values when another filter is applied

Hi, I think we’re facing a bug when we have a filter applied through drop-down list.

Let’s say I have a partner_id selected in my report through a drop-down list. To that partner id are associated a certain number of niches.

I have a table in my dashboard that shows both partners and niches. If I filter on a specific partner id, I can see various niches in my table populated as expected.

The issue is that those same niche values are not appearing in my niche drop-down list. The drop down is in fact empty. I cannot use the niche drop-down to filter on any niche of my chosing

Is this a bug or is it something I’m doing wrong?