Invalid access to memory WinSCP Version 5.9.2

We are using WinSCP PowerShell Wrapper Module with automated script that download File from SFTP.
WinSCP Version 5.9.2 (Build 6958) (OS 6.3.9600 - Windows Server 2012 R2 Standard) Server have 16 GB with 2.4 GB free on moment of run.

We received errors in session log file please advise:

. 2017-02-21 16:21:13.956 Opening remote file.
> 2017-02-21 16:21:13.956 Type: SSH_FXP_OPEN, Size: 51, Number: 11492099
< 2017-02-21 16:21:14.329 Type: SSH_FXP_HANDLE, Size: 13, Number: 11492099
> 2017-02-21 16:21:14.337 Type: SSH_FXP_WRITE, Size: 16380, Number: 11492614
. 2017-02-21 16:45:05.087 Initiating key re-exchange (too much data sent)
. 2017-02-21 16:45:06.428 Doing Diffie-Hellman group exchange
. 2017-02-21 16:45:06.508 65407 skipped SSH_FXP_WRITE, SSH_FXP_READ, SSH_FXP_DATA and SSH_FXP_STATUS packets.
> 2017-02-21 16:45:06.508 Type: SSH_FXP_CLOSE, Size: 13, Number: 22981892
> 2017-02-21 16:45:06.508 Type: SSH_FXP_SETSTAT, Size: 51, Number: 11492361
. 2017-02-21 16:45:06.692 Doing Diffie-Hellman key exchange with hash SHA-1
. 2017-02-21 16:45:07.397 Initialised AES-256 SDCTR client->server encryption
. 2017-02-21 16:45:07.397 Initialised HMAC-SHA-256 client->server MAC algorithm
. 2017-02-21 16:45:12.220 Error while disposing the SFTP queue.
* 2017-02-21 16:45:12.220 (ESshFatal) Out of memory!
. 2017-02-21 16:45:12.220 expected key exchange reply packet from server
. 2017-02-21 16:45:12.220 Fatal error while disposing the SFTP queue.
. 2017-02-21 16:45:12.435 Connection was lost, asking what to do.
. 2017-02-21 16:45:12.459 Asking user:
. 2017-02-21 16:45:12.459 expected key exchange reply packet from server ()
< 2017-02-21 16:45:12.470 Script: expected key exchange reply packet from server
. 2017-02-21 16:45:17.695 Connection was lost, asking what to do.
. 2017-02-21 16:45:17.695 Asking user:
. 2017-02-21 16:45:17.695 Invalid access to memory.
. 2017-02-21 16:45:17.695
. 2017-02-21 16:45:17.695 Please help us improving WinSCP by reporting the error on WinSCP support forum. ("Stack trace:","(003E0A90) ","(00863846) ","(008658AE) ","(00862668) ","(0003CF4E) ntdll.dll","(0003CDB6) ntdll.dll.KiUserExceptionDispatcher","(0085127B) ","(00614DA7) ","(00618A8B) ","(0062930B) ","(006FB99C) ","(006F68E6) ","(007348FB) ","(0076F49F) ","(00771079) ","(0076B485) ","(007593C3) ","(0075851A) ","(00784E11) ","(006EC875) ","(006E74F3) ","(006E8866) ","(00053D6F) ","(0005A212) ","(000D5DCA) ","(000024A8) ","(0086187D) ","(000488EC) ntdll.dll","(000488BF) ntdll.dll",,"(00863EB1) ","(0086548B) ","(0076DF15) ","(0076F49F) ","(00771079) ","(0076B485) ","(007593C3) ","(0075851A) ","(00784E11) ","(006EC875) ","(006E74F3) ","(006E8866) ","(00053D6F) ","(0005A212) ","(000D5DCA) ","(000024A8) ","(0086187D) ","(000488EC) ntdll.dll","(000488BF) ntdll.dll")
< 2017-02-21 16:45:17.695 Script: Invalid access to memory.
< 2017-02-21 16:45:17.695 Please help us improving WinSCP by reporting the error on WinSCP support forum.
< 2017-02-21 16:45:17.695 Script: Stack trace:

< 2017-02-21 16:45:17.695 (003E0A90)

< 2017-02-21 16:45:17.695 (00863846)

< 2017-02-21 16:45:17.695 (008658AE)

< 2017-02-21 16:45:17.695 (00862668)

< 2017-02-21 16:45:17.695 (0003CF4E) ntdll.dll

< 2017-02-21 16:45:17.695 (0003CDB6) ntdll.dll.KiUserExceptionDispatcher

< 2017-02-21 16:45:17.695 (0085127B)

< 2017-02-21 16:45:17.695 (00614DA7)

< 2017-02-21 16:45:17.695 (00618A8B)

< 2017-02-21 16:45:17.695 (0062930B)

< 2017-02-21 16:45:17.695 (006FB99C)

< 2017-02-21 16:45:17.695 (006F68E6)

< 2017-02-21 16:45:17.695 (007348FB)

< 2017-02-21 16:45:17.695 (0076F49F)

< 2017-02-21 16:45:17.695 (00771079)

< 2017-02-21 16:45:17.695 (0076B485)

< 2017-02-21 16:45:17.695 (007593C3)

< 2017-02-21 16:45:17.695 (0075851A)

< 2017-02-21 16:45:17.695 (00784E11)

< 2017-02-21 16:45:17.695 (006EC875)

< 2017-02-21 16:45:17.695 (006E74F3)

< 2017-02-21 16:45:17.695 (006E8866)

< 2017-02-21 16:45:17.695 (00053D6F)

< 2017-02-21 16:45:17.695 (0005A212)

< 2017-02-21 16:45:17.695 (000D5DCA)

< 2017-02-21 16:45:17.695 (000024A8)

< 2017-02-21 16:45:17.695 (0086187D)

< 2017-02-21 16:45:17.695 (000488EC) ntdll.dll

< 2017-02-21 16:45:17.695 (000488BF) ntdll.dll

< 2017-02-21 16:45:17.695

< 2017-02-21 16:45:17.696 (00863EB1)

< 2017-02-21 16:45:17.696 (0086548B)

< 2017-02-21 16:45:17.696 (0076DF15)

< 2017-02-21 16:45:17.696 (0076F49F)

< 2017-02-21 16:45:17.696 (00771079)

< 2017-02-21 16:45:17.696 (0076B485)

< 2017-02-21 16:45:17.696 (007593C3)

< 2017-02-21 16:45:17.696 (0075851A)

< 2017-02-21 16:45:17.696 (00784E11)

< 2017-02-21 16:45:17.696 (006EC875)

< 2017-02-21 16:45:17.696 (006E74F3)

< 2017-02-21 16:45:17.696 (006E8866)

< 2017-02-21 16:45:17.696 (00053D6F)

< 2017-02-21 16:45:17.696 (0005A212)

< 2017-02-21 16:45:17.696 (000D5DCA)

< 2017-02-21 16:45:17.696 (000024A8)

< 2017-02-21 16:45:17.696 (0086187D)

< 2017-02-21 16:45:17.696 (000488EC) ntdll.dll

< 2017-02-21 16:45:17.696 (000488BF) ntdll.dll
. 2017-02-21 16:45:22.709 Connection was lost, asking what to do.
. 2017-02-21 16:45:22.709 Asking user:
. 2017-02-21 16:45:22.709 Invalid access to memory.
. 2017-02-21 16:45:22.709
. 2017-02-21 16:45:22.709 Please help us improving WinSCP by reporting the error on WinSCP support forum. ("Stack trace:","(003E0A90) ","(00863846) ","(008658AE) ","(00862668) ","(0003CF4E) ntdll.dll","(0003CDB6) ntdll.dll.KiUserExceptionDispatcher","(0085127B) ","(00614DA7) ","(00618A8B) ","(0062930B) ","(006FB99C) ","(006F68E6) ","(007348FB) ","(0076F49F) ","(00771079) ","(0076B485) ","(007593C3) ","(0075851A) ","(00784E11) ","(006EC875) ","(006E74F3) ","(006E8866) ","(00053D6F) ","(0005A212) ","(000D5DCA) ","(000024A8) ","(0086187D) ","(000488EC) ntdll.dll","(000488BF) ntdll.dll",,"(00863EB1) ","(0086548B) ","(0076DF15) ","(0076F49F) ","(00771079) ","(0076B485) ","(007593C3) ","(0075851A) ","(00784E11) ","(006EC875) ","(006E74F3) ","(006E8866) ","(00053D6F) ","(0005A212) ","(000D5DCA) ","(000024A8) ","(0086187D) ","(000488EC) ntdll.dll","(000488BF) ntdll.dll")
< 2017-02-21 16:45:22.709 Script: Invalid access to memory.
< 2017-02-21 16:45:22.709 Please help us improving WinSCP by reporting the error on WinSCP support forum.
< 2017-02-21 16:45:22.709 Script: Stack trace:

< 2017-02-21 16:45:22.709 (003E0A90)

< 2017-02-21 16:45:22.709 (00863846)

< 2017-02-21 16:45:22.709 (008658AE)

< 2017-02-21 16:45:22.709 (00862668)

< 2017-02-21 16:45:22.709 (0003CF4E) ntdll.dll

< 2017-02-21 16:45:22.709 (0003CDB6) ntdll.dll.KiUserExceptionDispatcher

< 2017-02-21 16:45:22.709 (0085127B)

< 2017-02-21 16:45:22.709 (00614DA7)

< 2017-02-21 16:45:22.709 (00618A8B)

< 2017-02-21 16:45:22.709 (0062930B)

< 2017-02-21 16:45:22.709 (006FB99C)

< 2017-02-21 16:45:22.709 (006F68E6)

< 2017-02-21 16:45:22.709 (007348FB)

< 2017-02-21 16:45:22.709 (0076F49F)

< 2017-02-21 16:45:22.709 (00771079)

< 2017-02-21 16:45:22.709 (0076B485)

< 2017-02-21 16:45:22.709 (007593C3)

< 2017-02-21 16:45:22.709 (0075851A)

< 2017-02-21 16:45:22.709 (00784E11)

< 2017-02-21 16:45:22.709 (006EC875)

< 2017-02-21 16:45:22.709 (006E74F3)

< 2017-02-21 16:45:22.709 (006E8866)

< 2017-02-21 16:45:22.709 (00053D6F)

< 2017-02-21 16:45:22.709 (0005A212)

< 2017-02-21 16:45:22.709 (000D5DCA)

< 2017-02-21 16:45:22.710 (000024A8)

< 2017-02-21 16:45:22.710 (0086187D)

< 2017-02-21 16:45:22.710 (000488EC) ntdll.dll

< 2017-02-21 16:45:22.710 (000488BF) ntdll.dll

< 2017-02-21 16:45:22.710

< 2017-02-21 16:45:22.710 (00863EB1)

< 2017-02-21 16:45:22.710 (0086548B)

< 2017-02-21 16:45:22.710 (0076DF15)

< 2017-02-21 16:45:22.710 (0076F49F)

< 2017-02-21 16:45:22.710 (00771079)

< 2017-02-21 16:45:22.710 (0076B485)

< 2017-02-21 16:45:22.710 (007593C3)

< 2017-02-21 16:45:22.710 (0075851A)

< 2017-02-21 16:45:22.710 (00784E11)

< 2017-02-21 16:45:22.710 (006EC875)

< 2017-02-21 16:45:22.710 (006E74F3)

< 2017-02-21 16:45:22.710 (006E8866)

< 2017-02-21 16:45:22.710 (00053D6F)

< 2017-02-21 16:45:22.710 (0005A212)

< 2017-02-21 16:45:22.710 (000D5DCA)

< 2017-02-21 16:45:22.710 (000024A8)

< 2017-02-21 16:45:22.710 (0086187D)

< 2017-02-21 16:45:22.710 (000488EC) ntdll.dll

< 2017-02-21 16:45:22.710 (000488BF) ntdll.dll
. 2017-02-21 16:45:27.723 Connection was lost, asking what to do.
. 2017-02-21 16:45:27.723 Asking user:
. 2017-02-21 16:45:27.723 Invalid access to memory.
. 2017-02-21 16:45:27.723

Thanks for your report.

Can you send me an email, so I can send you back a debug version of WinSCP to track the problem? Please include link back to this topic in your email. Also note in this topic that you have sent the email. Thanks.

Hi

We too need the debug tool. could you please share with us. I have sent an email request for the same.