Connection problem: Login screen stays at the top

I am WinSCPing into an Arduino Yun, I cearly see it authenticates , does not give any error then immediately goes back to login screen. I can successfully connect with putty to the device.

I appreciate any help? Thanks

Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

martin wrote:

Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

Thanks here is the file

This issue has been added to the tracker:
https://winscp.net/tracker/1489