I have successfully tested #incognitee private token transfers on https://try.incognitee.io by nostr:npub1teerer7l6q4aweperlunlgrn9jd5y956cuxkrpju6tmj3qsulvast0weax with my account 5DyUPtApNCybE669MzzGBAZsTV7JCpMPYvqob7L5jmPqbP6A