Blender 2.91.2 Transparency Effect no longer works with emission I use emissions to create flat renders, and I used this node layout in Eevee for images with alpha channels.

The above was provided to me by another user.
I've recently updated 2.91.2 and now I can no longer use this lay out. In the current image I'm using, I'm trying to render a checkerboard tile where the white spaces are transparent.

The original texture is png with alpha channel 
But when I apply the same node layout I get a weird interpretation that isn't even transparent.

It instead creates a weird grid like wireframe effect. Why is this? Did they change how this works or am I doing something visibly wrong.
EDIT: I also went back to an older file, and the effect still works, UNTIL I apply it to a new mesh. By that I mean, copy and paste. Same image, same nodes, no alpha channel. HOWEVER if I use material copy via CTRL+L it does work. I am completely at a loss
Cheers!
Answer from a helpful person
&quot;check when you press n in the material editor &gt; options, if blend mode is set to alpha blend or alpha hashed. – Alex bries&quot;