Thormarch (Hard) too much damage

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Date & Time: 19.04.2020 15:00
Frequency: everytime
World name: Phoenix
Character name: Mari Khargosh
Monster name: Good King Moogle Mog
Class/Level: lvl 50 synched & unsynched lvl 80
Party or solo: both
In-game time:
Area and coordinates: Thornmarch Hard

Transition Memento Moogle does too much dmg

minimum ilvl for the duty is 54
WHM has 2800 HP on that level

the first Memento Moogle at start of second Phase does 3850 HP DMG

This never happened before 5.25.

Our Group wiped several times because of this.
Since this Duty is required for story and the player as of that time of the story do not have enough ilvl to beat this fight in the bugged state, this needs ot be fixed ASAP.

Date & Time: 19.04.2020 16:30
Frequency: everytime
World name: Lich
Character name: Miliandra Shiro
Monster name: Good King Moogle Mog
Class/Level: White Mage Level 50 synced / Red Mage Lvl 80 unsynced and synced
Party or solo: both
In-game time: 19.04.2020 14:30
Area and coordinates: Thornmarch Hard

Same bug on Lich, tested on both WHM and RDM.
RDM HP at level 54 is 2.7K, can't survive the attack, and this attack is mandatory.