I am working with a teacher to troubleshoot the Grade Passback from Canvas to Synergy (SIS).  We keep getting an error message that reads, "Cannot read property 'assignment_group_id' of undefined."  Does anyone know what this means?  I figured this was because the assignment categories did not match from Canvas to Synergy, but this was not the case.  I also noticed that she has 2 additional categories in her Canvas class, but they contain assignments that are not published and not enabled for sync as well as the categories are worth 0 weight of overall grade.  Any ideas?