Hope I am not offending any volunteers!
I have all but two bubbles to finish from orange to gold in my Spanish to Portuguese tree ( not snake).
Most are on level 6, too.
But Duome reports it as L3 with one day to go to L4 and in the progress some L6 skills are listed as L3.
Very strange... What is going on? I have finished L4 about 4 weeks ago.