Apple has released macOS 12.1, which fixes a bug that could cause Vellum (and other applications) to crash on Intel-based Macs using Monterey.

If you’ve had problems with Monterey, we recommend installing this update immediately by going to  > System Preferences and choosing Software Update. There, you should be prompted to update to macOS 12.1.

If you still experience issues with Monterey after performing this update, please let us know.