In the Lost Grove task bar, it shows what materials I need to collect and how many of each I already have. When exploring the forums for info on it, I found a list of how many of each I will ultimately need to progress to stage 2. Ive only gotten three types so far. Heres what the guide said I would need:

Ancient Timber x ~ 10
Enchanted Cloth x ~ 13 or 14
Tempered Steel x ~ 6 or 7
Spritely Branch x ~ 200
Reclaimed Supplies x ~ 88

Heres what Ive collected:

Ancient Timber x1
Spritely Branch x15
Reclaimed Supplies x4

Before I handed them in, the zone progression showed the number of materials I had gathered, but all the percentages in parentheses remained at 0%. Now that Ive handed the materials in, the numbers that had gone up return to 0 and the percentages are still 0.

Now, if that guide is correct, the percentages should be:

Ancient Timber (~10%)
Spritely Branch (~7.5%)
Reclaimed Supplies (~4.5%)

My question: Why arent the percentages going up?
After I posted this question, I refreshed the Lost Grove exploration window and the percentages went up. Hoping this post will be helpful to anyone else with this question in future.