net losses do not pass to the beneficiaries until the year the trust terminates.
see this link
https://www.legacyenhancement.org/blog/2020/november/can-trusts-distribute-losses-/
on your test "final year" return did you indicated the property was disposed of?
Box 11, Codes E and F—NOL Carryover
Upon termination of a trust or decedent’s estate, a beneficiary
succeeding to its property is allowed to deduct any unused net
operating loss (NOL) if the carryover would be allowable to the
trust or estate in a later tax year but for the termination. The
deduction for regular tax purposes, reported as code E, is
reported on Schedule 1 (Form 1040), line 8a.
A deduction for an Alternative Tax NOL (ATNOL) carryover for
alternative minimum tax (AMT) purposes, reported as code F, is
reported on Form 6251, line 2f.
