Comba take my ability forever + mirage/mirage prime does not share buff?

[Luminous0000]

I was Playing arbitration, corpus survival in solo, which gives +300% str on mirage.

So I took my mirage prime, but it gives nothing.

In game abilities, buff icons says it has no +300% buff.

BUT, I saw +300% str on rhino goes on rhino prime.

What's difference between rhino and mirage?

 

And I just playing that mission, null comba coming, disabling my Hall of mirrors and Eclipse.

At right that moment, I pressed 5 two times for refill my health using elevates.

Atfer that, comba died, my mirrors and eclipse locked, it doesn't unlocked even several mins runs out.

That makes me more fragile, so that survival ends up early then I expected.