AI Agent Node Not Calling Tool, just outputting "functionCall"

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I’ve got an AI Agent node that doesn’t always want to call the tools, but it does output a JSON object that shows (for example)

“functionCall”:
{
“name”:
“Airtable_Send”,
“args”: { [ALL THE CORRECT DATA] }

So it’s showing that it SHOULD be calling the tools with the right data attached, but it’s not actually doing it. Anything I can try to get it to call the tools? I’ve tried manipulating the prompts, but it doesn’t seem to follow any rhyme or reason.

I’m currently using Gemini 2.5 Pro Preview 3-25 for the model.

Thanks!