[Vishnja1]

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 and double creating roles with same names.
I think this is a bug.

The same problem as described here https://bbpress.org/forums/topic/custom-roles-resetting-no-role-for-these-forums/