Regression when using custom stencil with in-editor mobile preview.

This does NOT reproduce in MAIN at CL 9730599

Steps to Reproduce

4.22 Sample project attached

1. Project Settings -> Set Custom Depth-Stencil Pass to "Enabled with Stencil" Also Enable Mobile HDR and Android Support OpenGL 3.1

2. Place a cube in the level

3. Enable "Render Custom-Depth Pass" on cube and set the stencil to 100

4. Create a surface/translucent material with SceneTexture -> Custom Stencil connected to base color

5. Place a plane which covers whole placed cube + Set the plane's material to newly created custom stencil material.

6. Set the preview rendering level to Android GLES3.1 Preview or iOS Preview

Result: Cube will not show through plane in 4.23

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ComponentUE - Platform - Mobile
Affects Versions4.234.23.1
Target Fix4.24
Fix Commit9846563
Main Commit9868090
Release Commit9846563
CreatedOct 25, 2019
ResolvedOct 28, 2019
UpdatedNov 25, 2019
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