My capital loss carryover did not carry over from my 2021 return to my 2022 return. How can I be certain nothing else failed?

You can rest assured that your return is correct other than this. Turbo tax stands by their calculations and if inaccurate, they will pay any interest and penalties that results in additional tax liabilities that may occur because of inaccurate calculations. Please read this article regarding Turbo Tax accuracy guarantee provision.

Meanwhile, to report your carryover, 

1. ign in to your TurboTax account and open your return by selecting Continue or Pick up where you left off in the progress tracker
2. In the search bar, search for capital loss carryover, and then select the Jump to link in the search results
3. Select Yes on the screen Did you have investment losses you couldn't claim in 2021?
4. Enter the info about your capital loss in the screen that follows.