Some features in the Post Process have stopped working in this instance

Post processing has stopped working for the majority of features in the settings.

attached: Project download: [Link Removed]

1. Open included Project from link above with 4.5.1
2. Adjust the post process setting

Notes: This is a 4.5 project. It is also a source build project that cannot be upgraded to later versions without some code changes that I'm not aware of how to do myself (not a programmer). The post process volume is set to have a red-hue through out.

Migrating just the map to a new project will show correctly.

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