Time: Tuesday May 22h, at 5:30 AM GMT+8
Context: Go Sunken Sunvault Tier 4 looking for Fireheart Flower
Expected: Find Fireheart Flower in Tier 4
Observed: Nothing found in the whole Tier 4 , only find that spawn in Tier 5
Repro Steps:
1. Go to Tier 4
2. Running the whole Tier 4
3. No any Fireheart Flower, can only find in Tier 5

You need 330 Fireheart Flower to level up Gas level 7 , and you can't find any in Tier 4 ,that so crazy