Zaalbar has instant defeat immunity?

During my (ally code: 323275537) most recent GAC match up against my opponent (ally code: 541597932), I used a JMK, CAT, Snips, GK and Padme team vs a GL Rey, Ben Solo, Ezra Exile, Zaalbar, and Vandor Chewbacca. I utilized a level 15 Temple Guard FDC and my opponent had a level 15 Zaalbar FDC. The play went as follows: I used JMKs "Hello There" to reduce cool downs on CAT. Then Rey took a turn and used "Lifeblood" on Ben. On the following turn, I used CAT's "Force Leap" to instantly defeat Zaalbar. However, Zaalbar did not die, nor did he take damage. There is no clause for instant defeat immunity in Zaalbars kit, his FDC, nor in Vandor Chewbaccas, nor in GL Reys. Ben Solo has a clause under "Force Dyad" for gaining instant defeat immunity however only after he has revived. Since this occurred at the start of a fight, this would not apply. Ezra Exile has instant defeat immunity only for spectre allies as part of his "Exile" unique however no spectre allies were present and Zaalbar is not a spectre ally. I wish I had footage of the fight, however I do not. To recreate it, should be as simple as running these three moves in the same order. When thinking about this bug, it could be possibly related to the Vandor FDC despite it not having any clause regarding instant defeat, or some weird interaction between either Ben's omi or Ezras unique.