sshfs launched from KDE desktop no longer works

Hi,

I just upped my laptop from 11.2 to 11.3
I have a KDE desktop icon to conveniently mount a directory over sshfs.
This icon stopped working since the uprade.
From the commandline the sshfs command works fine. But launched from the desktop icon as well as from the command-widget (ALT-F2) the connection ends abruptly.

On the remote side I get:

Dec 25 14:37:18 specht sshd[14999]: Accepted publickey for koos from 192.168.1.66 port 60932 ssh2
Dec 25 14:37:18 specht sshd[15003]: subsystem request for sftp
Dec 25 14:37:18 specht sshd[15003]: Received disconnect from 192.168.1.66: 11: disconnected by user

On the local side the mounted directory shows as:

-rw-r--r-- 1 koos users  129 dec  5 10:57 site.xml
drwxr-xr-x 2 koos users 4096 dec  4 12:44 Sjablonen
d????????? ? ?    ?        ?            ? specht
drwxr-xr-x 3 koos users 4096 dec  5 10:59 tmp
drwxr-xr-x 2 koos users 4096 dec  4 12:44 Video's

Is this a 11.3 problem? What is going on here?

Thanks,
Koos