Is there a known issue preventing the e-filing of my state tax amendment using TurboTax Desktop 2021 for Windows?

I had to amend my 2021 taxes, which I filed using the TurboTax Windows desktop software. I got most of the way through the amendment and I was told I had to print and send my federal amendment by snail mail, but that I could e-file my Colorado amendment. I proceeded to the next page, where it says, "We're ready to file your taxes". Hitting "Continue" on this page doesn't do anything. Anyone know what might be going on? It doesn't give me the option to do anything other than e-file my Colorado amendment so I'm at a bit of a loss for what to do next.

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