Lion of Aglaia untargetable glitch

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Date & Time: April 16, 2022, around 12:50am EST
Frequency: once (so far)
World name: Siren
Location: Aglaia
Character name: Saruhiko Fushimi
Monster name: Lion of Aglaia
Class/Level: any. I was 90 Reaper
Party or solo: Full party, 24-man
Area and coordinates: Area where we fight Lion and Lioness of Aglaia
Steps:
1. Clear up to Lion and Lioness of Aglaia
2. Have a tank (or anybody, really) ready at stand-by where the 2 lions appear.
3. Pull the moment the 2 lions appear
4. Lioness is targetable, but Lion is not. We can still get hit by Lion's attacks, though.

[Once Lioness was defeated, Lion was still not targetable. Group wiped via Lion's AOE to reset the fight. Once reset, both Lioness and Lion of Aglaia are targetable]