Herd Immunity will not unlock

LologueLologue Posts: 7 ✭✭
in SOS Assignments #1 latest comment 18 August, 2020, 11:52 pm.

SOS Level 35. I unlocked Ad INFINITUM and moved left to the connected Herd Ammunity. But it will not unlock. I have all necessary manuals and it is attached in tree to Ad Infinitum, but just shows the must unlock prior .

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