Is this a modpack or mod issue?
Unclear if modpack issue or if it belong to a certain mod.

PLEASE MENTION IF YOU ADDED ANY MODS.. ESPECIALLY SODIUM, IF YOU DON'T, IT MAKES US VERY GRUMPY
No added mods except for those added in the modpack update of course.

Modpack Version
Updated from 1.7.4 to .1.8.2

Describe the bug
I can't complete most of the quests. I can complete som quests in Kibe and the starter quests. I even made a new tree tap in my crafting station and it is not recognized as a finialized quest.

To Reproduce
Steps to reproduce the behavior:
Before you begin you may need som finished quests in say Tech Reborn and Applied Energistics 2 but I do not know if that is needed.

1. Open Curseforge
2. Update from 1.7.4 to 1.8.2 to a new profile (I did not wan't to screw up my)
3. Copy world from saves in 1.7.4 to 1.8.2 (since it is not copied when updating to new instance)
4. Start game and load world. You notice som blocks are gone but that is fine since that mod has been removed (Bewitched and Art of Alchemy)
5. Try to finish quests in Applied Energistics 2, Tech Reborn and Croptopia. you will not be able to finish the quest

Expected behavior
That items will be recognized when in inventory, alternativly that you have to craft them, but preferebly the first.

Screenshots

Logs
Don't know if logs will help?

Additional context
I play on my own computer, so no server involved.

Thanks for the work around! Having the same issue. Just downloaded the pack able to complete starter quests then nothing.

Found a sort of "Work Around".
Edit the snbt file in saves//ftbquests/ with any texteditor of your choice
Clear the arrays (replace everything between { and } with a single space
task_process:
started:
completed:
claimed_rewards:

Now when you load your world, the quests are finishable.