iPhone 13 on iOS 17.2.1 with Kagi for Safari 2.0.0. I have noticed another version that has redownload icon even though I don't remember uninstalling Kagi for Safari. I think that other one appeared after update to 2.0.0.
I have noticed immediately after updating to 2.0.0 that Kagi randomly fails to catch redirect from default search engine (Ecosia in my case). Since it is random it was hard to reproduce the issue but I got two vids attached below. Issue seems to be completely random using Look up from any app or Safari search field and issue before 2.0.0 did not exist.
EDIT: Forgot to mention that issue stops randomly or you can stop it by restarting Safari (dismissing it from multitasking menu).
Second vid is interesting because it was first and only time that after failed redirect from default search engine it actually did redirect but with significant delay. Usually it just fails to redirect randomly.