TurboTax Business does not support certain state fiduciary returns (see returns not supported at the link below). As a result, you would have to prepare the state return manually if not supported by the program.
https://ttlc.intuit.com/community/state-taxes/help/which-states-are-not-supported-in-turbotax-busine...
Note that grantor trusts can take advantage of optional methods of filing.
See https://www.irs.gov/instructions/i1041#idm140366310230464
