[SOLVED] WinSCP does not "see" mounted partition

WinSCP 5.9.3 on fully updated Windows 7:
It is strange, that WinSCP on my Windows notebook does not find an ext4 harddisk (partition) mounted on my Debian computer.
In contrast another sftp client - sftp plugin in Total Commander - on my Nexus 7 Android tablet shows this partition.
At this moment I am clueless and appreciate any hints.
If required I would like to give more detailed info.
Greetings,
Tom

Please show us some screenshots. Of Windows Explorer too.

Thanks for paying attention, Martin.
It was my mistake. After writing the full path to the remote directory I could read/write.
Greetings,
Tom