Return of Reckoning

Logging back into my Black Orc character after the server restart a few minutes ago i found that certain quests were missing from my tracker; specifically the epic quests: Annihilation, The Ebon Flame & Time to WAAAGH!. upon further inspection i found that the quests was not even present in my Tome, like i had never even collected the quests in the first place!
following this, i went back to the original quest givers, (assuming the quests had reset) to find the quests was also missing from them too.

Is this a common thing? Have the quests been deleted? i was several stages into each of the three quests before the restart and am looking for any advice to shine light on this issue.

fixed my own problem! turns out the quest just reset a few stages backwards so i had to manually find the specific quest giver at the stage it was on before the restart.

Apologies & thankyou for responding!