What do you mean by "ex-husband?" Were you divorced by the end of 2024? If you are filing Single now then you should be using a new account and user ID so that you do not keep encountering errors and aggravation from embedded "spouse stuff" that is in an old account that was used for past joint returns.
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-start-another-return-in-turbotax-onli...
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