Issue with TotalDebtRatio Parameter in Power Apps Tutorial

Hi,

I am following a tutorial for creating a canvas app in Power Apps and have encountered an issue with the formula applied to the OnSelect function of a button. The formula is as follows:

With(
    Contacts.contoso_CalculateContactDebtRatio(RecordsGallery1.Selected.Contact),
    Notify(
        "Total debt ratio: " & Text(
            TotalDebtRatio,
            "###.00%"
        )
    )
)

The problem occurs when I try to save the formula with the TotalDebtRatio parameter. In this case, the formula resets to its previous state and I am unable to proceed. I have followed all the previous steps to configure the instant plugins, so I don’t think the issue is related to a misconfiguration.

Here are the links to the relevant parts of the tutorial:

• Part explaining this section: https://video2.skills-academy.com/en-us/training/modules/common-low-code-plug-in/use-instant-plug-ins-power-apps
• Part explaining the creation of the plugin: https://video2.skills-academy.com/en-us/training/modules/configure-low-code/exercise-instant

Could you help me understand what might be causing this issue and how to resolve it?

Thank you very much for your assistance!