State tax filing

You treat the OH place as a temporary state...not one she moved to.

So, in the Personal Info section, she indicates she was a resident of KY at the end of the year, and she "moved" there in Oct of 2023 from MO.   Then, at the bottom of the Personal Info page, she indicates she had Other State income in OH...so she has a non-resident OH tax return for the time she spent there.

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BUT...the reciprocal tax agreement between KY and OH is going to make it all very, very messy to do yourself....that is, if she worked in KY while living in OH, or worked in OH while living in KY.....then a Professional preparer definitely might be needed (yeah, opinion).

.....  But if she only worked in OH while living in OH, and only worked in KY after moving to KY, then using TTX should work "fairly" easily.  Still might take a busy 2-weeks of work....with some definite frustrations.  (Time for a tax pro locally in KY?)

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Other: MO does things strangely for Part-Year residents, giving a person the option to either file a Full-yr-MO tax return, and taking a credit for taxes paid to the other states...or doing a full-yr Non-Resident MO tax return, and then specifying just the $$ amount received during the year that are truly MO income.  It's a probably a tossup.