When using a Blendable to render SceneTexture:Scene Color into the Post Process, it appears to render as expected in PIE and Simulate, but when viewed in Standalone, Launch On or a Packaged Game the Blendable only renders Black.
Also Reproduced in Main Promotable-CL-2575140 and 4.8 Preview 4 (Launcher)
Quick Reproduction, open Attached AH_SceneColorTest Project
RESULTS: Screen appears completely Black
EXPECTED: Screen should appear as it does in editor.
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