If you are experiencing problems using simplegradebook in Chrome after the 4.3 version upgrade, please clear your browser cache.
- Click the three dots on the upper right hand side of the browser
- Hover over More Tools then select "Clear Browsing Data"
- Uncheck everything except "Cached Images and Files" - there is no need to delete anything else
- Make sure "Cached Images and Files" has a checkmark
- Select "All Time" under time range dropdown at the top.
- Click "Clear Data" on the bottom right of the dialog box
After you refresh your simplegradebook page everything should be fine.