Zorii Bliss and Damage Immunity

I’m sure I’m missing something, but as I read Zoriis kit, she will gain DI to tanks only once.
However the last 3 battles I’ve had against her Finn in the leader slot gained DI at least twice and I’m fairly certain it was three times on last meeting.

It’s omni Zorii with her DC, though can’t see either of those doing anything with DI.
I can’t recall the exact teams but Finn lead and I believe at least one was with hero bros, at least two was with OG Poe.