In an "Upload Single" assignment 2.2 type the file submission link for a student found in the Settings block under Assignment Administration -> Submission is a broken link. When clicked the following error message is produced:

"No valid arguments supplied"

Stack Trace:
line 435 of /lib/setuplib.php: moodle_exception thrown
line 3192 of /lib/filelib.php: call to print_error()
line 37 of /pluginfile.php: call to file_pluginfile()

Steps to Recreate:

1. Access a course as Student and make a submission for a Upload Single file type Assignment (2.2)
2. Navigate to Settings Block > Assignment administration > Submission
3. Observe that file name which was submitted is listed as a link
4. Click on the link in attempt to download the file

Expected Result:
Successful download of the Submitted file

Actual Result:
Error message is rendered that "No valid arguments supplied"