I think the directional volatility indicator has an error.

The strategy summary shows:

    Open a new long position at the beginning of the bar when the following logic condition is satisfied:

    Directional volatility* (5); the line rises.

    Open a new short position at the beginning of the bar when the following logic condition is satisfied:

    Directional volatility* (5); the line falls.

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    Open a new long position at the beginning of the bar when the following logic condition is satisfied:

    Directional volatility* (5); the line changes its direction upward.

    Open a new short position at the beginning of the bar when the following logic condition is satisfied:

    Directional volatility* (5); the line changes its direction downward.
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Thus in all the logics of the indicator

In this way we can only apply ascending volatility when the price rises, but not when the price falls.