This is a bit of a tricky one, as it sometimes happens, but I have not figured out when exactly.
Sometimes, Kagi shows me international results, despite displaying the selected region as "Germany", switching back to "International" and then back to "Germany" again, fixes it.
Steps to reproduce:
Not sure :/
Show the region the search has been done in.
Firefox, International as region chosen in settings.
Showing Germany, results international:
Switching to international:
Going back to Germany:
Pressing the "Clear" Button, switches the result back to Intl, but says the region is Germany: