When holding the schematic item, sometimes* the blur is applied, and sometimes* it's not. After the blur starts it does not stop after deselecting the schematic. The blur key bind also does not work. The blur can only be removed by opening a GUI that normally causes a blur and closing it again.

No blur:

Blur:

Blur stays:

*The doesn't apply the first time the schematic is held, only the second time (or when the schematic is used). This state is reset whenever another GUI is opened.