no proving ground ?

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.

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

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. 

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​ thanks for the answer !

DarjeloSalas​ thanks !

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

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!