Date format not detected

I have a rule that's meant to match a file whose contents contain a date. I have the date token configured for automatic detection. Now here's an image of the top few lines of a certain file's text content:

The Hazel rule fails to match the file, and I'm just puzzled why that would be. I've had other files match the same rule with no problem. It's a very standard date format in my part of the world, and it's very clear type. Am I missing something?

The Hazel rule fails to match the file, and I'm just puzzled why that would be. I've had other files match the same rule with no problem. It's a very standard date format in my part of the world, and it's very clear type. Am I missing something?