Students cannot see data tables

I am on Unit 5 Lesson 10 of CS Principles. When my students click on the data tab, there are no data tables listed. Is there something I need to do to give them access? I have not had to do anything previously. The tables were built in automatically.

That is strange. There should be tables there and you do not need to anything extra for the students. I would write to to see what is going on.