CSV Import Plus plugin deletes files

I have an Omeka repository with thousands of items. Each Omeka item has at least one file attached. I would like to use this plugin to batch update item metadata in some of my collections. But when I try to do so, the files attached to my items are deleted by the CSV Import Plus process.

How can I preserve my files, but replace my existing metadata values with the values in a .csv file?

There are many configuration options in this plugin, but none of the config combinations I have tried work for this scenario. Is this scenario possible with the CSV Import Plus plugin? If not, is there another plugin that can accomplish this task?

I’m updating this to say that Daniel fixed this in version 2.3.1 of the CSV Import Plus plugin.