Training Ground locked for Dynamic Duos event

There is still an issue of the training ground event being locked for the new Dynamic Duo Challenge.  Without being able to play this event every 8 hrs, you will not be able to attain the grand master.  This happened with the last Dynamic Duos event earlier in the season.  Free points were added to the store to offset the training ground being locked even though I am over level ten and am in a league.  Please either put the added free points in the store again or fix the bug so training ground is unlocked.

a pic of the locked training ground event is in the picture.  And other suggestions is also welcome