Apple has begun the beta process with macOS Big Sur (version 11).
Due to changes in some available libraries in macOS Big Sur, versions before Cartographica 1.5.2 will not run on macOS 11. If you are testing macOS 11, please upgrade to Cartographica 1.5.2 (or any version 1.5.2b1 or later) in order to preserve functionality.
If you encounter a problem with Cartographica and Big Sur, please verify that you are running the most recent (1.5.2) version of Cartographica before reporting a bug. With that said, we do appreciate the reporting of bugs found under new OSes and Platforms, but support times may be longer especially early in the beta cycle.
Thank you for your support!