On OSX baking environment reflection probes are corrupt if done from the lighting window, normal reflection probes seem to be fine. The issue only occurs when the lighting is built manually.

Steps to repro:
1. In a new project, disable Auto mode
2. Create a sphere in the scene
3. Save the scene, then bake the lighting
4. Check the resulting reflection probe made from the bake, it will be corrupted

or download attached submission project and try to bake the lighting.

Results on OSX are a corrupt environment reflection probe.
Expected results are it should create a reflection probe that should be fine.

Notes:
- Reproducible in: 5.6.0a5 (9035139f3c4f)
- Not reproducible in: 5.6.0a3 (f5e6a1ed1396)