Blueprint Cost Incorrect sometimes?

Im having an issue on my server where some items in research table say scrap cost to blueprint but it doesnt work but if you add a bunch of scrap it works

For example: Pickaxe, says 75 scrap, but actually took 250 scrap to blueprint

Is this a bug in Rust itself? People arent really talking about it.
Or is this potentially Oxide related?

I unloaded all plugins and problem was still there, I havent tested on vanilla server yet

Only one other report of this behavior in the Playrust Reddit Official Bug Reporting Thread:
Official Bug Reporting Megathread - Devblog 182 • r/playrust

 

I have same problem. How resolve him?

 

"it's based on Rarity of item", so any plugins that change item rarity I guess change blueprint research cost, Im still not sure though, just what I heard

 

I use AlphaLoot plugin, and hi is have function "Rarity". I need him to do balance loot in crate and barrel. But how fix this problem without off this function? Maybe have a plugin, ho control cost research?