we have released the 2024.3.2 hotfix for Cinema 4D which among other things rectifies the incompatibility between the 2024.2 and 2024.3 C++ ABI. We strongly recommend that C++ developers update to this version.

The C++ ABI of Cinema 4D 2024.3.0 and 2024.3.1 is and remains incompatible to other versions of the 2024 release. Building, running, or debugging plugins for 2024 is not supported for these two releases.

You can update with the installers provided here or using the Maxon app.

Please excuse the inconvenience,
the Maxon SDK Team