Created attachment 111475 [details] Screenshot showing strange "preferred folder" icon layout. Since upgrading to kMail vom Applications 17.12.1 or 17.12.2, the "preferred folder" layout (using icon view, not list view) is messed up every time I start kMail for the first time after login. Just exiting kMail again and restarting it then fixes the issue. See screenshots. ii kmail 4:17.12.3-0neon+16.04+xenial+build58 amd64 full featured graphical email client
Created attachment 111476 [details] Screenshot showing proper "preferred folders" icon layout after restarting kMail.
Seems to be fixed again in KDE Applications 18.04, thanks!