4.6 - Bug "if" on Material Functions

Hi.

On upgrade to 4.6 I’ve noticed that all my materials that relies on Material Functions stopped working.

Additional Info:
They worked perfectly on 4.5.1.
They were used within UMG Widgets.

Between post on forums and repost here I did a test with one of then and looks like de Math “IF” node is the one to blame for, removing it from one of my MFUNCs got it back to work.

I’ll try make the same change on another function to proofcheck this.

Best Regards.

CHECKED!

The Math “IF” node is causing material functions’ malfunction.

This is a really horrible regression and we’re getting it fixed ASAP.