Convert | Actions' results summary can report incorrectly the number of tags formatted. E.g. if I run an Action group that formats two tags of one file, the summary says:
1 of 1 tags formatted.
0 of 1 files renamed.
Perhaps the first figure is the number of files in which tags have been formatted? In which case a fix would be for the summary to report "tags formatted in 1 of 1 files".