To developers, ue 4.14 crashes! - Error: 0x887A0006 - 'HUNG'

I can’t work with UE4 (4.14.1) because Editor has crash every time after any manipulation in the Editor.

  1. scrolling by scroll button in a meshviewer , panel properties.
  2. after build project (if selected shaderModel 5)
  3. And any random cases.

i7 2600 3.40GHz
win 10
geForce GTX 550Ti
12Gb RAM3