If you are looking in a direction a terminal is at you should see a darkish blue glow at the place the terminal is. You have to have Line of sight to it.
Just go a little slower and pay attention to what's on screen.
Most of the terminals are along walls or tucked into the corners by stairs or by railings....
Before Wisp update and possibly the one before that I think I was in SP Circ or maybe just Lone Story UC and Sevagoth was killed while I was in Shadow form. Pretty sure it happened repeatedly because I was trying to remember how to revive Sevagoth as his shadow lmao...
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Just go shadow and focus on watching Sevagoth while you fight...
What happens if you are a Shadow and Sevagoth is drained of all energy?? Shadow isnt channeled but maybe it does something? Eximus/Thrax and or gloom can drain you quick...
(PSN)AbBaNdOn_'s post in how do you find hack console FOR MECH SPAWN in netracells mission? was marked as the answer