Regarding the issue you reported, we recently released a newer version that includes fixes and improvements related to SFTP connections.
Please try updating to the latest version (3.18.1164) using the link below and check whether the issue still occurs.
Regarding the issue you previously reported (deleted files reappearing),
we have identified that it was related to NetDrive version 3.18.1164, and the issue has now been fixed.
Please download and test the updated version, NetDrive 3.18.1166, using the link below in your SFTP environment.
This version includes fixes related to SFTP behavior and file handling.
If the issue persists after updating, please let us know and we will investigate further.