Description: When registering diastereomers with "or1" stereochemistry the application will recognize them as duplicates and create multiple batches of the same compound.
Cause: As of version 25.1, Signals Notebook has changed how it handles the registration of diastereomers with "or1" stereochemistry notation.
Workaround: To registering diastereomers with "or1" stereochemistry as different compounds a user must perform manual registration and select the option 'Treat as Unique'.