Can't seem to unlock the next set of mots ... dunno why. I've completed everything up to that point. anyone know what's going on?
I got stuck recently because, as a newcomer, I hadn't realised that the skills tree defines prerequisites. You can't do some skills until you've done ones above and sometimes beside them. For example, you wouldn't be able to do Verbs: Infinitive if you haven't already done Family. I ended up following the star that Duolingo places on the top-right corner of the skill it recommends you do next. I'm not sure if this is the problem you're experiencing, but I mention it in case it is.
Could it be you mastered "Dates and Time" with translations points but still have undone lessons in this category? If this is not the case i'd suggest you contact the support team under: firstname.lastname@example.org
As mentioned already, I have done absolutely everything prior to this module. Every extra piece in every single module prior to until the module itself says "mastered." There is nothing left that I haven't "mastered" on the tree leading up to that module. I don't know how to be more clear. The next module simply won't unlock, even though everything is complete. I don't know what else to do. Thank you for the email to help, I looked for such an email last night but could not find it. I'll try that.
All right mystery solved. I had private browsing enabled. When I disabled that, the skill set unlocked, so I believe that was the problem if anyone else ever runs into it.