if you are filing form 1040 and not 1040-NR then since all income is US based there is nothing to report for the k-3. uncheck the box 16. as long as you have tax basis the amount on line 11c (section 1256 losses) are reportable on your 1040. it is a capital loss. it will flow to form 6781 and from there 40% will flow to schedule d line 4 and 60% will flow to line 11. if you have no capital gains for the year up to $3000 may be used in the current year. the remainder carries over to 2023. This is not a passive loss where you would have to sell your partnership interest to take the loss.
