Since I raised the plants closer to the light, I noticed my Paul Robeson plant had something like "sun burn" on its leaves.
So I removed that extra toy box I had added which lowers the plants by two inches from the light. I think we're good now as they are > 4 inches away from it. Will probably lower another 2 inches in a week or two once they grow longer.
I think this one will survive as another set of true leaves is in the making!