it will not allow me to type anything in the interface. any tips or suggestions?
Tip no. 1: Post a link to the exercise so we can be on the same page as you.
Tip no. 2. See tip no. 1.
If there is indeed an issue, then it will need to be reported. Do you see where the bug reporting tool is at the lower left in the instruction pane? Describe the problem and the folks at the other end will know what to look for.
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