How do I report a calculation bug in the Oregon State tax module? The module incorrectly calculates an income subtraction for a nonresident. token 1199407

I am a nonresident with a federal pension with Oregon income. The State module incorrectly subtracts a portion of my non-taxable pension from the taxable Oregon income, resulting in underpayment of taxes. The workaround is to manually enter corrections into forms. But this bug has been around for at least two years now and should be fixed. Token for any agent: 1199407