Maxon just released an update to Cinema 4D 2024 with a couple of fixes.

Updating is highly recommended

Bug Fixes

Asset Browser

• Fixed an issue with Asset Browser’s Create Index command.

Modeling

• Fixed a stability issue with the Extrude tool.

Objects

• Fixed a stability issue with the Instance object.

Simulation

• Fixed a performance issue with loading projects with a large number of Connectors.

XRefs

• Fixed an issue with vanishing Overrride Tree in the Take Manager.