i am running zlevels and quests. But in looting section of quests, i am running into an issue where the count is not correct. ex: i have it set to get 50 metal blades. I have gone around and picked up 12 but in quests it only sees that i have 5..and this goes the same for most of my other loot quests as well.

I have the same issues. The mod recognised that I picked up an item the first time then bugs out after when I try to pick up another item that is the same later ex. I find a bed, it sees i picked it out the box. I find another bed in another box but wont add to counter.

Does this problem still exist?

hello, yes its still exist. quest looting from items will not 100% accuracy, sometimes it will count and sometimes not.
i am not sure if it somehow to do how i loot, mouse click or drag & drop. i will check it again.

please send me your quests_data,json

I am also noticing this issue.   Gears as an example not counting all the time.  About 40% of the time don't count.

Quest is using the default system so zlevels or any gather system won't actually do anything for the Quest mod.

To put it simple having a x2 gather won't add x2 to Quest as this mod only works with x1 default, Same with zlevels.

A API must be added by nivex (ZLevels Maintainer) to fix this