the 1099-B and k-1's are separate. the 1099-B only reports the trades of the ETF's while the partnership K-1s only report the trades the partnerships themselves made. one has nothing to do with the other (except to the extent the profit or loss of the partnership and distributions affects your tax basis in it). but you do have a reporting issue. the broker's 1099-B is probably not reporting your correct tax basis in the ETF's when sold. if the cost on the 1099-B is the amount you originally invested each time, it's wrong. each k-1 should have a supplemental schedule to allow you to compute the tax basis on each trade. this can change whether or not you have wash sales. proper reporting becomes very complicated especially if you still held any of the ETF's at year-end. this may require the services of a tax pro.
