I suspect yours is showing up as $8250 because you have entered a Federal Adjusted Gross Income (AGI) less than $125,000 for single filers, or $250,000 for married filing jointly. See 2024 Oregon Publication OR-17 Individual Income Tax Guide, Table 9 "Federal tax liability subtraction AGI phase-out".
Can you please try with an AGI greater than $125,000 for single filers, or greater than $250,000 for married filing jointly? I expect you will then observe the defect.
