After renaming a substance material, several errors appear in the Editor console.

Reproduction Steps:
1. Open the attached project and select the Limestone_Blocks asset
2. Rename the material within the substance asset
3. Observe that the material is not re-selected after being renamed (issue 1)
4. Click in the scene view, observe the following error (issue 2):
"KeyNotFoundException: The given key was not present in the dictionary."
5. Use the editor for a little while, select and de-select the substance, adjust the substance values. Eventually these two errors will appear (issue 3):
"Failed to dispose EditorWrapper."
"Failed to dispose EditorCache."

Expected result:
Simply renaming substances shouldn't result in errors being generated.

Issues 1, 2 and 3 are reproducible in version 5.5.0b7 (bd91e53964bc).
Issues 2 and 3 are NOT reproducible in version 5.4.1p4 (139dac7766f0).