no proving ground ?

As a European resident having such a short event time with the event starting at 9/10 PM and finishing before the evening the day after. If you are busy during the Monday night and a busy Tuesday at work, proving grounds is suddenly finished! They should expand the hours, so you can have a normal life and not miss the most important event for limited strong characters! 

BabylonFallen​ thanks for the answer !

DarjeloSalas​ thanks !

DUNCAN1919​ didn't know (or forgot) that the PV was hidden if i had everyone available unlocked.

Seems you have a history of complaining about events not being there when the issue is you don't learn from your own mistakes- there lies the failre.....

Is

BabylonFallen​ has it right,sarisse​ 

You have all the units available in Proving Grounds at 7 stars, so it won’t show for you. I think the next cycle will be the first to offer Jocasta shards, so you’ll see it again next time around. 

If you have all the characters unlocked in proving grounds it disapears.

Proving grounds is right there in my events tab. Not sure what’s broken on your end, though this does bring to mind how I somehow missed Peridea Patrol on Saturday.