If you have changed activity scores in the Google Classroom gradebook, your changes might be overwritten by manually syncing scores from WebAssign. To prevent this, edit WebAssign scores in the WebAssign gradebook.
Sync Scores to Google Classroom
After adding activity links from Google Classroom, your students' WebAssign scores sync to Google Classroom based on your settings. If needed, you can manually sync scores to Google Classroom.
How-toInstructor HelpWebAssign