Copying files to remote side failed Transfer failed.- Winscp

WinScp Versions:4.2.7 & 4.2.9 B938.

I am trying to transfer some image file to destination location however randomly i get following error message.

Copying files to remote side failed Transfer failed

Please see the log below for the same.

. 2011-02-15 14:58:13.735 Copying 1 files/directories to remote directory "/XXXX-JAPAN/IMAGES/"
. 2011-02-15 14:58:13.735 PrTime: No; PrRO: No; Rght: rw-r--r--; PrR: Yes (No); FnCs: N; RIC: 00; Resume: S (1024); CalcS: No; Mask: *.*
. 2011-02-15 14:58:13.735 TM: B; ClAr: No; CPS: 0; ExclM(No): <1B
. 2011-02-15 14:58:13.735 AscM: *.*html; *.htm; *.txt; *.php; *.php3; *.cgi; *.c; *.cpp; *.h; *.pas; *.bas; *.tex; *.pl; .htaccess; *.xtml; *.css; *.cfg; *.ini; *.sh; *.xml
. 2011-02-15 14:58:13.735 File: "C:\Documents and Settings\XXXX\Desktop\XXXX\6401000071_003.tif"
. 2011-02-15 14:58:13.735 Copying "C:\Documents and Settings\XXXX\Desktop\XXXX\6401000071_003.tif" to remote directory started.
. 2011-02-15 14:58:13.735 Binary transfer mode selected.
. 2011-02-15 14:58:13.735 Starting upload of C:\Documents and Settings\XXXX\Desktop\XXXX\6401000071_003.tif
> 2011-02-15 14:58:13.735 TYPE I
< 2011-02-15 14:58:13.750 200 Type set to 'I'
> 2011-02-15 14:58:13.750 PORT 133,8,70
< 2011-02-15 14:58:13.750 200 Command okay.
> 2011-02-15 14:58:13.750 STOR 6401000071_003.tif
< 2011-02-15 14:58:13.766 150 Status okay; about to open data connection.
. 2011-02-15 14:58:13.766 m_pSslLayer changed state from 0 to 7
. 2011-02-15 14:58:13.766 m_pSslLayer changed state from 7 to 4
. 2011-02-15 14:58:13.781 SSL connection established
< 2011-02-15 14:58:13.828 526 Transfer failed.
. 2011-02-15 14:58:13.828 Copying files to remote side failed.
. 2011-02-15 14:58:13.828 Got reply 4 to the command 4
* 2011-02-15 14:58:13.828 (ExtException) Copying files to remote side failed.
* 2011-02-15 14:58:13.828 Transfer failed.
. 2011-02-15 14:58:13.828 Asking user:
. 2011-02-15 14:58:13.828 Error transferring file 'C:\Documents and Settings\XXXX\Desktop\XXXX\6401000071_003.tif'. ("Copying files to remote side failed.","Transfer failed.")
. 2011-02-15 14:58:14.110 Session upkeep
. 2011-02-15 14:58:14.610 Session upkeep
. 2011-02-15 14:58:15.110 Session upkeep
. 2011-02-15 14:58:15.610 Session upkeep
. 2011-02-15 14:58:16.110 Session upkeep
* 2011-02-15 14:58:16.203 (EScpSkipFile) Error transferring file 'C:\Documents and Settings\XXXX\Desktop\XXXX\6401000071_003.tif'.
* 2011-02-15 14:58:16.313 Copying files to remote side failed.
* 2011-02-15 14:58:16.313 Transfer failed.
Can you please help us.

Is it really random? Like if transfer of the same file sometime succeeds, sometime fail?

martin wrote:

Is it really random? Like if transfer of the same file sometime succeeds, sometime fail?

Yes, it's randomly occurs with few images and all subsequent transfers fails.

OK, can you try it with WinSCP 4.3.1 beta?