UE 4.4 Material editor crashes with Ctrl-C / Ctrl-V

Hey guys, I’m having the same, I followed the steps to verify launch and it “backed up files” and finished but I still have the error.

Here is my DxDiag, I am going to try un-installing and re-installing.

DXDiag.txt

This is the crash error:

!Id:8fdfadb5217ce5e081950a0068ff47df

We apologize for the inconvenience.
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