When I amend my accepted 2023 tax return no 1040X is generated by TurboTax.
Has your original return been filed, accepted and fully processed by the IRS?
See this TurboTax support FAQ for amending a tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-change-correct-return-a...