I'm preparing a return here and it appears there's a $300 net operating loss carryover from 2020. It appears this is the 2020 $300 charitable contribution deduction last year on line 10B. The client had 2020 AGI of 13,700 but had no taxable income. She is retired elderly Widow. This $300 loss is coming forward apparently to this year? Is this correct or is it a program error?. I am researching now but I can't find anything definitive on it... maybe I missed something .  Thanks for any help.