Midnight Season 1: Catalyst Unbound

So far none of the posts here mention looting a charge from delves successfully yet, so for those wondering if it's possible:

I just looted one in a T11 Bountiful Delve. This was my third T11 since getting 4-set, and I've not done any M+ or Raids on this character since I got the achievement.

Edit: I also just got one from a T8 Bountiful Delve

Got that achievement and so far:
0 charges from 3 bountiful delves with key, 1 w/o.
0 charges from M0(expected).
2 charges from PVP, played 2v2 rated. Got them for each 5 first wins(5 win = 1, 10 win = 2).
As for now: after 22 wins in 2v2 didn't received any additional ones, blitz win didn't gave anything either.

Maybe it's capped as 2 for now, I'm scared to use them, so that's all info I have for now. Hope this helps someone.

UPDATE 26.03:
Got 3rd one from 4th boss during hc+normal raid clears. Nothing so far from keys.

UPDATE 27.03:
Got 4th from key.

Just chiming in for people that are curious. Ever since I received the achievement I have done the following:

- 7 normal bosses, 7 heroic bosses
- 6 bountiful delves
- 14 m+ 10-12 dungeons
- All the open world weeklies / World Boss

Since then I have received 0 Dawnlight Manaflux.

I'm either unlucky or the charges are rather rare.