Bug : WinSCP cannot handle multiple open files in editor w7

WinSCP cannont save a changed remote file while multiple remote files are open in assigned texteditor (tested with latest notepad++ and pspad).

Only the first open file can be saved again, but only after all other open files/tab in the editor are closed.

Reproduced on Windows 7 32&64 Bit, DE & EN Versions.

It was working correct unter XP.

Make sure you have editor preference option External editor opens each file in separate window (process) turned off.
https://winscp.net/eng/docs/ui_editor_preferences

The next version of WinSCP will automatically restore the editor options defaults when changing editor command from Notepad to 3rd party editor
https://winscp.net/tracker/1872