https://bugs.winehq.org/show_bug.cgi?id=11595
--- Comment #45 from Bernhard Übelacker bernhardu@vr-web.de --- (In reply to yms from comment #44)
For what is worth, this issue also happens with Notepad++ 6.8.1 (the latest version at this time), when running under Windows 8 x64, Win 8.1 x64 and Win 10 x64. I think this issue might be inside Notepad++ itself and not in Wine.
Exchanged some mails with yms about this issue and yms found out that the issue described in comment 44 on native windows was caused by the nppftp plugin.
So this bug seems to be still valid for wine. (wine-1.7.49, npp-6.8.1, all plugins disabled)