PX4 ESC array data in px4log files

On Pixhawk, the SD card px4log files do not seem to contain all of the ESC data.
In particular ESC_Adr, ESC_Volt, etc only have one column.

I’ve opened an issue for this here:

Can anywone explain how, for example, esc_address in msg/esc_report.msg makes it to ESC_Adr in the px4log?