Terraria Alchemist NPC Infinite Money Glitch (READ DESC.)
This is probably due to some mod overlay changing the sell price of the heart lanterns to be higher than the buy price.
These are the mods I'm using that I want to list:
Calamity
CMM (Calamity Music)
VCMM ("Vanilla" Calamity Music)
UCMM (Unofficial Calamity Music)
Calamity Interludes In-Game
Calamity Infernum Mode
IMM (Infernum Music)
VeinMiner
Alchemist NPC Lite
Magic Builder (underrated)
Fargo's Mutant Mod
Plentiful Ores
Auto Fisher
Better Boss Bar 1.4.4+
Better Respawn
Boss Checklist
Boss Cursor
Recipe Browser
Starter Bags
Wing Slot
Magic Storage
There's probably a few I left out, and things like auto fisher and better respawn probably do not affect it.
2k plat is broken tho
If you haven't already, check out Calamity Mod Infernum Mode. It is quite a challenge, but if you are quite skilled and have beat Revengeance mode before, or you think you're "too good" while not even have beaten Master Death Mode, this will be sure to humble you.