I'm so CONFUSE with the UNIQUE COUNT

[Iceph (Phisit ice)]

on my work i used the Unique count metric and suppose the value is 6 << remember this value

and then i would make a metric visualization i used unique count and i play value is 6 still ok but then I Filters this

on my Discover Page and value is 0

then i copy this filters above and pates into Filters Bucket and value STILL 6 !
i have a question why the value still 6. I Filters in Discover page and value is 0 but i Filters on Bucket value is 6 << (6 is value of UNIQUE COUNT)

[lukas (Lukas Olson)]

Which version of Kibana are you using? It might be that you're using KQL here inside Discover, but using Lucene inside your filters bucket in the visualization.