No, there is not a known issue with Colorado returns that has been documented.
Try deleting your state return and starting it over. There may have been an issue when the data was transferred from the Federal return to start the state. If the issue is not corrected, feel free to come back and let us know.
See the following TurboTax help articles for guidance:
How do I delete my state return in TurboTax Online?
How do I delete my state return in TurboTax Desktop for Windows?
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