I accidentally added an assignment to the week that I scheduled our spring break. Now I'm not able to remove the assignment or move it to another day. It seems stuck.
Have you tried dragging the assignment from the week back to the list of assignments?
That didn't work- it seemed the assignment was stuck. But I deleted the vacation dates and then I was able to move the assignments back to the list. Then I added the vacation dates again.
Sorry about your difficulties - we are revamping the assignment generator to make it more calendar based. We're planning to have the update finished by Feb. 1st.