Yes. When a major update is made to VOCALOID6 Editor, it is necessary to update to a version that is compatible with AI voice banks.
However, since minor updates are also performed for the VOCALOID6 Editor, the version numbers of the voice banks may not necessarily match.
You can obtain the updater from the following site and resolve the issue by updating VOCALOID6 Editor and AI voice banks simultaneously.

https://www.vocaloid.com/en/support/download/update_v6e/

*No updaters are provided for add-on voice banks and voicebanks from other companies.

Please access the following URL, enter your download code, and reinstall the latest version.

https://www.vocaloid.com/en/support/download/dlcode_check

For products from other companies, please contact the respective companies for assistance.