Another isolation vault question

[(PSN)ErydisTheLucario]

The vaults are easy enough to solo with ease, and I want to do the other tiers like 2 and 3. Either I don't have the option to solo, or Idk where to start it again. Any help would be appreciated as I'm still trying to wrap my head around this. Note i had no problem with doing the vaults with other people, i just don't have the option to do it solo.

[(XBOX)Greenguy5000]

check around with multiple mother places in the drift, from what i know its a specific one for each tier

[McCIoud]

Each vault has to be started at the specific Mother spawn point, fly around talking to them to find the correct ones

[(PSN)iuvenilis]

You have to speak to Mother closest to the subsequent vaults.

https://warframe.fandom.com/wiki/Isolation_Vault

A total of three Isolation Vaults can be accessed per mission, requiring players to reaccept the bounty from Mother within the Cambion Drift. Each successive vault are essentially divided into tiers, adding harder enemies but yielding greater rewards; the first vault pulls from the "common" reward list, the second from "uncommon", and third from "rare". The location of the vaults are as follows:

• The center of Cambion Drift, in the cave below Undulatum
  • Accepting the bounty inside the Necralisk will direct to this vault
• The southwestern side, south of The Abscess
• The easternmost side, east of Catabolic Gutter

[(PSN)ErydisTheLucario]

Oh okay cool, thnx guys.