It appears after students make a first submission - the drawing tool disables itself.
I am using this as an ungraded work box for their math work.
U4A practice 3 Multipy and Divide Polynomials
Student Eli S, Remit L
We are looking into it. We'll update this question when the issue is fixed.
We have fixed this issue.
Now when a student redo a task with a drawing field that doesn't count the previous draw will appear and the student will be able to modify the drawing.
Apologies for the inconvenience.