We are aware of this bug and ran into an issue this bug causes with needing to change settings in an activity and being unable to do so. We are not sure if it is related to our problem of not being able to add a new SCORM activity or change the url within a previously created SCORM activity or that is a separate bug?
We can add the other activity types without error, it is just unique to the SCORM activity for us.
It is not a permissions issue as we use Moodle in a corporate setting and don't have Teachers per se, the staff that create and maintain our course materials are all Administrators in our db.
I did check the access to the coursesummary for that role and it is checked.