Extra Skills can't strengthen

When I try to do Strengthen Skills, it takes me back to However, I can do individual lessons. Is this a bug? (The extra skills are idioms and flirting)

September 29, 2014


I've got it for idioms, but the normal skills are fine

September 29, 2014

So you can't strengthen idioms?

September 29, 2014

Nope! I reported it through the support tab, acknowledged but not fixed

September 29, 2014

Okay, thanks!

September 29, 2014

Still unable to strengthen idioms directly, but I just did a general strengthen skills (button on the right of the tree screen), which came up with several idioms, so I have succeeded that way!

September 30, 2014

I too am having this difficulty, with Idioms and Flirting

October 1, 2014

Seems to be working now (4th October)

October 4, 2014

Since the topic is a few months old, I thought I'd give it a bump. I still have difficulty strengthening the extra skills (Flirting mostly, sometimes Idioms). It either takes me back to the home page or takes me through a lesson that is the same sentence 20 times and then doesn't count for XP or as being strengthened. Not really a big deal, but the completionist in me wants to keep everything topped off.

January 22, 2015

As of February 29, 2016, I cannot strengthen idioms. I get the same problem as the OP, in that I am returned to the main DL screen.

February 29, 2016

I cannot turn the Idioms skill gold no matter how many times I do the Weakest Words lesson.

January 22, 2018

Interesting! I just confirmed my email address via the in-email browser on my phone and then it took me into Duolingo where it shows that my skill is now gold. But in my Android app, it still shows as needing strengthening.

January 22, 2018
Learn a language in just 5 minutes a day. For free.