Repro steps:

1. Import the attached package
2. Open both the VFX and the Shader Graphs
3. Add a new exposed property to the Shader Graph and save it.
4. Observe how it does not appear in the VFX Graph.
5. Delete the Texture2D property in the Shader Graph and save it
6. Observe the shader errors

Expected outcome:
- Slots to resync automatically in the VFX Graph when the Shader Graph is saved.

Notes:
- Regression, works in 8.2.0