Developer Notes

This issue has been closed as 'Won't Fix' due to an extended period of time without updates. If this issue is important to you please let us know by posting on the AnswerHub or UDN, and Epic will re-open the ticket for further review.


If you apply the same material more than once as a blendable element the effects will not stack. Only one of the materials will be taken into account. However, if you make a copy and apply that it will stack with the original.

Steps to Reproduce
  1. Open attached project
  2. Select the PostProcess in the level and apply PP_Mat to both blendable elements

View dims
View turns black

Extra Info

  • a copy of PP_Mat was included in the project, if you apply the original and the copy as blendable elements they will blend causing the screen to go black.

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Won't Fix
ComponentUE - Rendering
Affects Versions4.12.54.13
CreatedSep 26, 2016
ResolvedApr 5, 2017
UpdatedApr 27, 2018