I am trying to have a custom search that filters trough multiple taxonomies.
Link to a page where the issue can be seen: versteckter Link.
I expected to see that the "count" value changes based on the options already chosen. Right now it happens that you chose an option from the first "filter" and then one from the second, but there is no match, even tough it states "2" as the count.
Example: I chose "Thema A" from the first filter and then the option "Kader". That has no results because there is no post that has both taxonomies.
What I need is, that the counts in the other filters change each time I chose an option.
Example: I chose "Thema A" from the first filter. Now the values in filter two should change to 1, 0, 0 because there is only a match with the first one.
It's not clear how you are adding the count to the checkbox filter controls, but the one thing that may be relevant here is that you can set the option to update the filter controls according to the matching posts, as shown in the screenshot.
If you can describe how you added your filter controls to include the post count I may be able to give a more definitive answer.