This is really a shame. I got the same, accidently drank the Juice, and left, second sight buff dropped, and after came back, rift cannot be opened, no option to make another Juice, or get blueprint, Dude keeps barking "Keep searching, man.", can't continue the quest to the Gray Army Base, and locked out from dealing Magnar, because I can't target him in his void/smoke/spirit form.
I didn't care it for first, gray army quest locked out right, not a problem, but there is no warning at that point, you should really do the quest, you will need that Juice at later stage at Magnar.
There should be at least option to make more Juice, before you attune the rift to Gray Army base, so you can waste Juice, not just something like a nooblockout.