Steps to Reproduce

Reproduce Steps:

  • Create a Postprocess material; 
  • Copy and paste the text attached into the material, Connect output of Custom node to Emissive input of the Material; Compile and save
  • Assign the material to a Postprocess volume and get it work in viewport
  • See it works as expected in SM5 preview mode;
  • Enable Mobile preview mode, it stop working

It does work on Mobile Preview mode in 4.19 and 4.18

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ComponentUE - Platform - Mobile
Affects Versions4.20.3
Target Fix4.21
CreatedSep 3, 2018
ResolvedSep 14, 2018
UpdatedSep 16, 2019