We have noticed an issue with KeyShot and Maya 2022 release. Mb/.ma files are not able to be imported to KeyShot 10.
Our developers are looking into this now.

Until this issue is resolved, installing a parallel version of Maya 2020 and then reinstall Maya 2022. Maya 2020 will bridge the gap between your versions and allow you to import your files. 

We apologize for the inconvenience and will have this issue resolved shortly.

If you are still having problems with Maya 2022, please contact support@luxion.com for further assistance.

Thank you for your patience during this time.