Blue mage learning action - not in spell book

[Hitoha2121]

Date & Time: 18/10/2020
Frequency: Once
World name: Tonberry
Character name: Miku Sugisaki
Retainer name: None
NPC name: None
Monster name: Sabotender Bailaor
Class/Level: Blue Mage level 20
Party or solo: Solo with friends help
In-game time: 3:30pm Server time
Area and coordinates: x15.7 y15.7
Housing: Non
Steps:
1. Pulled Sabotender with water cannon
2. friend put a heal over time ability to pull aggro and get 1000 needles cast on them
3. Once the spell was cast killed the sabotender, game informed me of the action was learned when looking at actions there is no 1000 needles there.

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[Mholito]

It should be in slot 36 in your Blue Magic Spellbook. There should be a green dot on the page it's on until you've moved the cursor over it.