When X learns the blueprint for Floor Grill (square), Y learns Floor Grill (square), X also learns Floor Grill Triangle, but Y does not learn Floor Grill Triangle. The same applies to Ladder Hatch.

Is there any errors showing up as this seems odd for only certain items to not share as the system is designed to work with any item that can be blueprinted.

Sorry for the delayed reply. A clearer example is, one player is only researching one triangle ladder hatch, one blueprinted item, but also receives knowledge of the square ladder hatch for doing so--this is normal game behavior and not the plugin. Through the plugin, the player's team will only learn the item from the blueprint (triangle ladder hatch), not the additional (square ladder hatch).

Ah this makes more sense now as I haven't played the game properly in a while so wouldn't have known this was a new mechanic. So to confirm this mechanic effects the floor grill (square and triangle) and ladder hatch (square and triangle).

Merged post

I have added in functionality to address this problem but I don't have a test server to test if this works for sure. Would you be able to test it for me if I send you the file?

So correct me if I am wrong but looks like you can find the triangle version of the floor grill and ladder hatch so not sure this is a necessary feature as I thought that by default you learned both variants of the item but you don't.

You do by default learn both variants. Here's a video demonstrating this on a vanilla server: https://youtu.be/ohX5TW50CaE