Robocopy copy: report: Dirs, Files, and Bytes are all 0 for Extras, but Times is 0:00:01. Why?

I copied a few files with robocopy on Windows 10. In the final report, Dirs, Files, and Bytes are all 0 for Extras, however Times is 0:00:01 for Extras. How is that possible?

               Total    Copied   Skipped  Mismatch    FAILED    Extras    Dirs :         4         3         1         0         0         0   Files :        91        91         0         0         0         0   Bytes : 218.184 g 218.184 g         0         0         0         0   Times :   1:00:24   1:00:23                       0:00:00   0:00:01   Speed :            64660373 Bytes/sec.   Speed :            3699.896 MegaBytes/min.   Ended : Tuesday, January 9, 2024 10:18:03 AM

I used this command to copy the files:

robocopy /e source_folder destination_folder