I’ve got a bit of a bug in UE4.12.0 (binary version). When making material functions, if I edit the text inside the ‘Library Categories Text’ input (In the details panel under “Material Function” when nothing is selected), UE4 crashes instantly. This happens every time without fail, on new functions…

Hey D.Smith, Thanks for the clear description of the crash. I was able to reproduce the issue in 4.12, and have gone ahead and entered a bug report which can be tracked on our Public Issues pages by following the link below. UE-31722 Once the bug has been addressed by the engineers a fix will be …

Bug Report - UE4 crash when changing material function category

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Bluntie (Bluntie) July 1, 2016, 2:20pm 3

I can second encountering this problem.