Character Class/Blueprint Class interaction only Semi-Functional between levels.

Hello! I have a strange problem.
I have a Character Class, that modifies the material instance of Tagged blueprints with an outline.
Thing is, the outline only works in certain levels!
I can interact with the item just as before with custom hotkeys.

Confirmed are working:
Project Default Pawn / Character / Mode are exact between levels.
Tags are Correct
Identical BP_Item between levels.

What am I missing?
Thank you!

It was the Post Process Volume.

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.