[@vishnja1 Participant 9 years, 1 month ago]

Having the same problem. After creating new roles they aren’t saved in user profile. In the
“Forum Role” select there is “- No role for this forums -“. Though really role seems to be applied. I’ve tried all approaches from this documentation page https://codex.bbpress.org/custom-capabilities/
The only thing that helped was installing “Members” plugin of Justin Tadlock (thank you Jakobuz) and double creating roles with same names. I think this is a bug.