Save() prohibited to prevent data loss due to unsaved related object 'group'

New install on an old I5 4series with 8gb ram.
After install and setting up users in the web gui got this error.
During installation Security was set to default.

save() prohibited to prevent data loss due to unsaved related object ‘group’.
Traceback (most recent call last):
File “/opt/rockstor/src/rockstor/rest_framework_custom/generic_view.py”, line 41, in _handle_exception
yield
File “/opt/rockstor/src/rockstor/storageadmin/views/user.py”, line 166, in post
suser.save()
File “/opt/rockstor/eggs/Django-1.8.16-py2.7.egg/django/db/models/base.py”, line 685, in save
"unsaved related object ‘%s’." % field.name
ValueError: save() prohibited to prevent data loss due to unsaved related object ‘group’.