Single member LLC where 100% owner is another LLC

I have a Montana LLC 100% owned by a Colorado LLC (which has multiple human owners).

TurboTax Business 2024 won't let me do the taxes of the Montana LLC because there's only one member....telling me to instead use Schedule C of the single member's 1040 tax return. That's true when the member is an individual.

But here the single member is an LLC. There is no Schedule C equivalent. TurboTax Business needs to provide the ability to do a single member LLC when the 100% owner is a legal entity (not an individual).

Please help.

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