Learn@UW - If Using Chrome, Panel to Grade and Leave Feedback for Dropbox Submissions May be Blanked
When using the Chrome browser, an instructor or administrator attempting to Grade and leave feedback for a Dropbox assignment will sometimes see an entirely blank area where the panel for grading and giving feedback should be.
When this problem occurs, it occurs for all dropbox folders, all submissions. Other browsers do not present this problem.
This is a known issue.
Resizing the Chrome browser window or zooming in or out on the screen usually will make the content for that panel reappear. Alternatively, use a different browser to Grade Dropbox assignments.