Unable to strengthen 'idioms'

On my tree this is showing at three bars, but when I go into the skill and select 'strengthen' I am taken back to the page with the tree. Anyone else had this? Been like this for a few days, and I have shut down and restarted a couple of times with no effect.

September 29, 2014

1 Comment

Clear your browser cookies. It may help.

September 30, 2014
Learn a language in just 5 minutes a day. For free.