I have a problem with my service desk. When I create a service desk i have the same problem of this link:
https://jira.atlassian.com/browse/JRASERVER-60080
I created a new Permission schemes, because the permission scheme created with the service desk have a Unknown security type (sd.customer.portal.only).
the problem is that when i create a new permission scheme I don't have the option Service desk customer - portal access.
Without this option my permission scheme don't work. I have another instance of jira and I compared both bases, but I haven't found any diference.