Has your keyboard extension suddenly disappeared in later versions of iOS 17? If so, you're not alone. I have written a post about this, and will gather findings as I investigate this problem. Feel free to share if you have investigated this too.
https://danielsaidi.com/blog/2024/02/13/custom-keyboard-extensions-disappear-in-ios17
@danielsaidi Not only keyboard extensions, but also keyboard toolbar items (e.g. a "Done" button to dismiss the keyboard) have stopped working in a consistent manner ever since iOS 17.0
@rungxanh1995 It’s a truly horrible time for keyboards in the Apple ecosystem