Unable to obtain ecological knowledge through gathering

Bug Name:

Unable to obtain/upgrade ecological knowledge through gathering​

Bug Description:

Because I used to be a retail kr server. (2~3 years ago)
So I am very uncertain whether other retail servers have this setting.
A while ago, when the retail launched the rare hunting monster, I read the discussion board to confirm that other servers have this setting.
There are no pictures and no videos because this involves RNG, and the other reason is that I don't want to delete knowledge.
But bdocodex does have 100% obtained ecological knowledge to reproduce/proof
https://bdocodex.com/us/theme/4005/?sl=1
Balenos Wolf​

How to reproduce/proof:

Use the gathering tool to gathering any creatures.​

 

Defeat monsters can work normally, gathering cannot obtain knowledge.

 

defeating Monster obtained A+, obtained through Gathering and upgraded to S.

As far as I understand it, this is not a new system, It already exists in the Kamasylvia version or earlier.

(the Kamasylvia version will be mentioned because PA increased the disgusting degree of ecological knowledge at that time,which is memorable.)

Does not rely on gathering to obtain knowledge It is very difficult to get S.