Version of Microsoft Windows I'm running WinSCP on: Windows 7 Enterprise SP1 64-bit.
Transfer protocol(s): SFTP.
I use GUI; interface style I'm using: Commander.
Describe precise steps that lead to the problem:
[Un]fortunately, I cannot reproduce it (nor can I give much details). I was trying to close few sessions opened on an AIX server before shutting down WinSCP. WinSCP was not configured to log its operations, so I cannot attach a session log file. Also,I can't provide a screenshot --- it happened too fast and did not repeat.
Invalid access to memory.
Some of the info mentioned above is summarized in the anonymous usage upload data -- see the attached file (WinSCP-v5.2.5-beta_anonymous-usage-upload-data_2013-11-14.lst).
PS: I was forced to put the data in a file because the it appears that the forum has the Scunthorpe problem with the s_ex word in the LifetimeRemoteFiles_Executed key (here, I've added an underline between "s" and "ex" to be able to announce this small inconvenience).