Robocopy doesn't retry on open files any more

Question

Hi,
I do

robocopy e:\source\build e:\source\_build /MIR

Output:

-------------------------------------------------------------------------------
   ROBOCOPY     ::     Robustes Dateikopieren für Windows
-------------------------------------------------------------------------------

  Gestartet: Donnerstag, 29. Oktober 2020 15:21:45
   Quelle : E:\source\build\bin\debug unicode\
     Ziel : E:\source\_build\bin\debug unicode\

    Dateien : *.*

  Optionen: *.* /S /E /DCOPY:DA /COPY:DAT /PURGE /MIR /R:1000000 /W:30

------------------------------------------------------------------------------

                         136    E:\source\build\bin\debug unicode\
                 Neuer            477696        p2aserver.exe
                 Neuer             1.8 m        Prosys2.Automat.AspublicUD.dll
                 Neuer             3.3 m        Prosys2.Automat.AutomatUD.dll
                           2    E:\source\build\bin\debug unicode\de-DE\
                           1    E:\source\build\bin\debug unicode\en-US\
                           1    E:\source\build\bin\debug unicode\fr-FR\
                           1    E:\source\build\bin\debug unicode\it-IT\
                          65    E:\source\build\bin\debug unicode\private\
                          55    E:\source\build\bin\debug unicode\public\
                           1    E:\source\build\bin\debug unicode\tr-TR\
                           1    E:\source\build\bin\debug unicode\zh-CN\

------------------------------------------------------------------------------

           Insgesamt   KopiertÜbersprungenKeine Übereinstimmung    FEHLER    Extras
Verzeich.:         9         0         9         0         0         0
  Dateien:       263         0       260         0         3         0
    Bytes: 1015.59 m         0 1009.95 m         0    5.64 m         0
   Zeiten:   0:00:00   0:00:00                       0:00:00   0:00:00
   Beendet: Donnerstag, 29. Oktober 2020 15:21:45

In the past I was used to robocopy plaining for errors and continually retrying if the file in the destination existed and was open and couldn't be overwritten therefore. Today I asked myself why the files at the destination were not updated and found that robocopy counts the open files in its summary error column, but doesn't do any retry.

It seems to me that this is a bug. Or is this intended behavior change?
Where could I report this bug?

This is on Win 10 Version 2004 (Build 19041.572)

Joja

Answer 1

Same issue here. What the heck? That was the absolute best and most essential feature of Robocopy. Why remove it? It's breaking scripts.

Answer 2

It just stopped working for me a few weeks ago (early May, late April 2021). Still no response from Microsoft?