How to reproduce:
1. Open user's attached 'VFXGraphAssetBundleBug.zip' project
2. Open 'Test' Scene
3. Enter Play Mode
4. Notice that 'VFXNoBundle' GameObject's particles are rendered while 'VFXFromBundle(BUG IS HERE)' GameObject's particles are not rendered in the Game View

Expected result: VFX Graph's particles are rendered in Play Mode when VFX Graph is imported from Asset Bundle
Actual result: VFX Graph's particles are not rendered in Play Mode when VFX Graph is imported from Asset Bundle

Reproducible with: 2019.2.12f1(6.9.0, 6.9.2, 7.1.1), 2019.3.0b10(7.1.1, 7.1.2), 2020.1.0a12 (7.1.1, 7.1.2)
Couldn't test with: 2017.4.34f1 Visual Effect Graph is not introduced, 2018.4.12f1 due to namespace errors

Notes:
- Not reproducible on build
- Not reproducible with Particle System that was imported from Asset Bundle
- NullReferenceException: Object reference not set to an instance of an object
UnityEditor.VFX.VisualEffectAssetExtensions.GetOrCreateGraph (UnityEditor.Experimental.VFX.VisualEffectResource resource), TargetException: Non-static method requires a target. errors are thrown in the Console