Please first make sure that the related license is currently activated to your local machine or iLok dongle in iLok License Manager.
If you still have trouble, this can have multiple causes:
- The UFS file may be incorrectly named. Please ensure the name is identical to the original file and ends with “.ufs”.
- The UFS file may be corrupted. The following article explains how to verify your files integrity: How to check the integrity of my soundbank
- [Mac only] The UFS file might have a permissions issue; locate the soundbank file, right-click it then select Get Info (Cmd+I), then change privileges to Read & Write in 'Sharing & Permissions'.