Have you installed bpdev plugins in mu-plugins ?
if yes go to your wp-admin => bpdev-admin => switch on BPDEV TinyMCE
works for me!
I added the BPdev plugins to /mu-plugins/ NOT /plugins/
that added an additional Menu option on the /wp-admin/ backend
from there, I am able to view all the available bpdev plugins and turn them on/off
I think you put it in the wrong spot