That is NOT a filter, but it belongs to the (*) button to the left and allows to select what type of entry to create in this project.
The filter you’re looking for is inside the filter-box now!
We could or should either use a drop-down button or group both widgets with an outline, so it’s optically clear they belong together. Anyway I created an internal bug for that, but as it’s not new, I gave it a lower priority, over new kdots bugs …
Ralf