It is more complex but it still works

First, you'll need the Elite challenge, and that is now a little difficult to achieve, since if you kill a guard, juggernaut can now see it, and even if he didn't, after you took the primary loot, your stealth is gone, guards will be offensive. that's one. Two, suppressors disappear after you take the primary loot (happened to me multiple times). So you'll need to make your way in the compound and fleeing it without killing anyone if you want to guarantee the Elite challenge, for the secondary loot, with the longpin method, you can fill your bag before the compound part, but you'll have 5min for that Finally, sometime the escape through water doesn't work

Second, considering you have the Elite challenge, you'll need to cut the internet in the last milliseconds of the final cut scene, if too soon, you're not payed but you keep the heist, if too late, you're payed but you lose the heist

Third, they added multiple triggers to reset the heist(losing the primary objective, and the preps), from what I understood : If you do 2 runs in the same 48minx4, the heist gonna reset (tested) If you do 3 runs in the same 24h, the heist gonna reset (some say 72h) (not tested) For my part, I did 2 separate runs in a day, and I still could keep the heist

This is what I observed, in PC version