CALDAV: rollershutter don't work


finally I made the caldav binding working by bypassing the iCloud calendar and using a owncloud service - and reading the wiki sentence by sentence :frowning:

Switches and heating is working, but for some reason rollershutter commands are not sent.

The command i want to send if UP or DOWN (“BEGIN:some_roller:DOWN”). The UP/DOWN command for the specific roller is working fine when I use it in the openhab console.

According to the log “something” is sent to the KNX bus, but maybe not the right command? The shutters don’t move.

Before I dive now into a KNX bus debug session (that’s some effort and my wife is already close to kill me) I just want to ask if this is a know issue or if I’m doing something wrong?