This is a known issue, check out the thread in here named Comprehensive Provisioning issues.
Actually, this is such a massive issue to me, I can no longer play vet levels. I rolled an alt to keep myself busy, but since there is no date for this to get fixed, I also cancelled my sub this morning. When I can actually do my chosen craft again, I will return and play happily.
I see a lot if not all veteran zones with lvl 1 ingredients. Wonder if Zenimax knows this and if its intended or just that they messed up and didnt put the right stuff in the zones according to level?