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The account did have > $600 of income in its holdings, but it also had loss greater than the income, making it a net loss.
A 1041 is required to be filed if the trust had gross income of $600 or more for the taxable year or any taxable income for the tax year.
See https://www.irs.gov/instructions/i1041#en_US_2022_publink1000285943
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