Even with the latest version of LM Studio and the latest runtimes I find that tool use fails 100% of the time with the following error: Error rendering prompt with jinja template: "Cannot apply filter "upper" to type: UndefinedValue".

EDIT: The issue is addressed in LM Studio 0.4.9 (build 1), which auto-update wasn't picking up for me for some reason.

I googled it- supposed fixed template

https://github.com/ggml-org/llama.cpp/issues/21347#issuecomm...

Alas, this does not resolve the issue for me.