Steps to Reproduce

Alianware Laptop with 2070MaxQ.

  1. Turn on RTX
  2. open a level
  3. add a new static mesh actor to the level or simply double click to static mesh to open  static mesh editor

Result:  UE4 will hang.

      If turn off RTX, then everything is fine.

      If turn off the screen and use HDMI to connect to external display/monitor, then won't hang.

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There's no existing public thread on this issue, so head over toAnswerHub just mention UE-72767 in the post.

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Fixed
ComponentRendering - Ray Tracing
Affects Versions4.22e0
Target Fix4.22.2
Fix Commit6411800
Main Commit6411805
CreatedApr 15, 2019
ResolvedMay 10, 2019
UpdatedMay 14, 2019