# Spitfire Kontakt Library switching doesn't work at all Chances are that this is easy to fix. You probably need to switch the Spitfire instrument to UACC KS.
![](https://eucattachment.freshdesk.com/inline/attachment?token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6ODAxODkwODY3MjgsImRvbWFpbiI6ImJhYnlsb253YXZlcy5mcmVzaGRlc2suY29tIiwiYWNjb3VudF9pZCI6MjAwMjc3M30.T-CpAdIDoQgN2xSddT7ljJMRWcRWbDU2GhUAxblT31Y)
![](https://eucattachment.freshdesk.com/inline/attachment?token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6ODAxODkwODY4NDYsImRvbWFpbiI6ImJhYnlsb253YXZlcy5mcmVzaGRlc2suY29tIiwiYWNjb3VudF9pZCI6MjAwMjc3M30.0omTc9wCfiSds0ywF64k5X496Y_6vN9g-90p-43QEf0) Details on the configurations of Spitfire Kontakt libraries can be 🔗 [found here](/set-up-your-libraries/spitfire-kontakt-libraries.md) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://support.babylonwaves.com/trouble-shooting/spitfire-kontakt-library-switching-doesnt-work-at-all.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.