Galaxy Note8s, running Android version 9 kernel 4.4.153 - let me know if there's any other info you need, not sure what else you'd want to see (security patch? Knox version? no clue)
I did temporarily have two accounts on both Amethyst and Amber. Could there be something residual stuck in a settings file or something? (dId yOu cHeCk tHe gIgAbYtEs? - I know nothing).