If Corona is not automatically saving CXR files from render history when using the 3ds Max quiet mode (batch rendering, command line rendering, 3rd party render managers), go to Render Setup > System > System Settings and make sure that:
- "Automatic saving on render end" is enabled
- "Show overwrite confirmation" is disabled
If the "Show overwrite confirmation" option is enabled, 3ds Max running in quiet mode cannot display the confirmation dialog, and this blocks history saving. Once the option is disabled, the history items are created and saved normally.