In Preferences > Indexing, we can specify to run the Renamer automatically under specific conditions. The 6th and 7th option in the dropdown list are both called "For new files". The last one should be called "For new and updated files", as described correctly in the corresponding help topic. (https://www.photools.com/help/imatch/rmh_config_indexing.htm#a_run_renamer?dl=hid-19)
2024-03-29 22_55_30-Preferences.jpg
This has been fixed for the next release.