This year, I was able to mark up the specific transactions of the 1099-B, based on the information in the K-1.
The K-1 also had the line 16 checked, indicating a K-3, and based on numerous other posts, I unchecked that on my K-1, with the expectation that later this summer, when I finally can get the K-3, I may need to do an amended return with the K-3. But I don't actually expect to need to do that, since I don't meet any of the normal K-3 situations.
I consider my issue resolved.
