ASeeker I just signed in to say something similar. I can replicate this. I thought it was related to switching from the Web search to Lenses search, but I can replicate it just on the Web search too.
In the Kagi search bar, I initially search for "Kagi." This returns the expected results. Then I change the search to "Google" and the search results are not updated. They are not updated if I type Enter, click the search magnifying glass at the end of the field, or even select from one of the autosuggestions. The URL does change to ?q=Google but the results to do not. If I go to the browser URL bar and type Enter, the results are updated to "Google" in this case.
This happens on Firefox on Windows desktop, and Safari and Orion on iOS.
Worked fine for me too yesterday so I bet something related to the news sharing Lenses release broke it.