I continued to lose Common Milkweed but the sunlight slowed down the death of the Butterfly Weed. The damage seemed to be done with the Bee Balm. The plants continued to grow crookedly despite the natural sunlight and support. I lost one pot. But I refused to give up on the pretty purple flowers.
I came to the conclusion that the Common and Butterfly (both of the genus Asclepias) Weeds did poorly with grow lights and needed sunshine. I lost all but 2 of my Common Milkweed and a half dozen Butterfly Weed remain. But they have markedly improved since being transferred outside.
Time to get transplanting.