r.SimpleDynamicLighting causes crash

Setting the console command r.simpledynamiclighting to true in the editor causes massive rendering issues and if you attempt to open a New Material, the editor will crash.

See attached Movie

Also Reproduced in Main Promotable-CL-2605107

[Link Removed]

1. Open QAGame Editor
2. Bring up Output log or Console Command line
3. type r.simpledynamiclighting 1
4. Create a New Material in Content Browser
5. Open New Material

RESULTS: CRASH

EXPECTED: Almost nothing that happens after your enter that console command is expected.

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