I have a few students who have assignments that won't synch with PowerSchool. The rest of the students' grades did synch. In PowerTeacher Pro their grade is correct, but in PowerSchool when they check their grades it is missing.
Have them check the assignments settings, are they set to publish? If the grade for the whole class is missing, I'd have them check their gradebook settings and make sure "Show Traditional Grades" is checked. They also might need to go into their Traditional Grade Calculations and make sure those are all set up correctly as well.