O2S: is there a bug with NIN?

Heya, I'd like to ask if other ninja noticed anything wierd happening during some of the mechanics in O2S.

A bit of context: 1st, It start with the feeling that sometimes my suiton wore off during some mechanics that require or remove levitate. I'm still not really sure about that because I didn't have the time to confirm that, and it's more or less a feeling so I can't tell.
However, during our last kill, I almost made my party wipe during the 2nd knockback mechanic (around 6th min of the fight that involve DPS to levitate). Thing is, I was on time in position with levitate, not lags detected, but I didn't get the knockback and killed 3 members.

That never happened before when I was handling this mechanic properly. However, the only thing that changed comparing other times is that I used suiton this time.

So I took a look at fflogs after uploading, and I noticed that I was the only one in my team that didn't took any damage with the knockback (it only knockback if you're using levitate, but everyone in the team still get damages):

https://www.fflogs.com/reports/NMrLa...&view=timeline
(sry it's in french, "chute ininterrompue" is the name of the damages from the knock back and "Gravité instable" is the aoe damage if you fail the mechanic)

Check at 364 secs, when the mechanic happened, you clearly see everyone taking damages but me.

I didn't go back so I couldn't run more test, but I think it is related to suiton because it is the only thing that I've changed. Any ninja here experienced similar things during the fight or it is just a isolated case?

Looking at the replay, and damage done by Catastrophe at 6:03, you were not in the AoE to begin with.