Did anyone have trouble with V. Cmp P 2? I started the first exercise, completed three or four of the questions, then the software jumped to the end and told me I had mastered the section. Is there any way to reset a skill on the tree so that I can do that exercise?
Is that a french section? I didn't had any problem as far as I remember.
Btw, FYI, here (in the general discussion section, called Duolingo or General) your post will be quickly lost in the enormous amount of posts so, to have more answers/explanations to your question, it would have been better to post it in the French Discussion section.
When you create a new discussion, there is a drop-down menu on the top, change from the default value "Duolingo" (which corresponds to this general discussion page) for the specific one (French, in your case). But you can change it now, it's not too late : edit your original post then select the French forum.