Please follow the instructions below. Please make sure BobCAD-CAM V25 is closed when you follow the steps.
Stock Material library fix
1. Open the C: Drive 2. Open BobCAD-CAM Data 3. Open BobCAD-CAM V25 4. Open Technologies 5. Right click the file that says MaterialDB.xml and select properties 6. Select Previous Versions at the top 7. Choose one of the version from around a month ago and then select Restore
This should correct the issue with your material library being empty