Handling Duplicate Official Materials After Export/Import

Hello everyone,

After performing several export/import operations on our tenant, I ended up with duplicate official materials (Core Material).

To remove these duplicates, I first need to replace all existing Materializes relationships with the correct material. This becomes very time-consuming when many objects are affected.

👉 Does anyone know a faster way to perform this material replacement?
 

Thanks in advance for your help and for sharing any tips or experience!