Description of the Bug

When i join a server that i am hosting the game doesn't spawn me with the items it does in singleplayer, and when i try to spawn in the quest book from FTBQuests it says the item doesn't exist. I don't know what i am doing wrong or what it happening but it's annoying

Expected Behaviour

Spawn with Book
Try to spawn in book, it's supposed to give you the book
Quests are supposed to work

Modpack Version

14.23.5.2847

Screenshots

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Log

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Extra Info

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You ran the vanilla server jar, that just boots vanilla, use the Launch script provided in the server files.
You will likely have to add an -Xmx arg to the launch script manually because @cornehoskam is a silly guy :V