Incursions artifacts

Forgotten2

We used to be able to get artifacts from sector 4, 5 & 6.
Why is it just 5 &6 this month and not 4?

SummonerNR

See..

https://forums.playcontestofchampions.com/en/discussion/383307/incursion-bug-sector-4-is-not-available-for-valiant#latest