When a course is created with Grid Format and is accessed with the MyMobile Theme it doesn't work. In chrome it will give the following error in the console log: "GET ../mod/assign/view.php?id=24 404 (Not Found) javascript.php:4"

Create a course, instead of using weeks, set it to Grid ( This will need Grid Format ).
Create an assignment
Set theme to MyMobile
Try to access assignment.

Obviously a bug I'd like to see fixed.