Upload maps with QLandkarte to Garmin GPSmap 76CS

I get an error message when uploading maps with QLandkarte Linux to the Garmin GPSmap 76CS:
Failed to upload maps. USB bulk write failed: No error

I have opened a bug: https://bugzilla.novell.com/show_bug.cgi?id=426175
But they canÂ’t reproduce the problem.

Has anybody experience with QLandkarte and the 76CS?