Thanks for your help, but when I am the only one then I have made something wrong when upgrading from release version to Snapshot? I follwed the only officially available instruction as posted here:
The result is that no sitemap is found although I changed NOTHING to my sitemap directories.
So although I tried multiple combinations, followed all recommendations here, asked all the experts and spent many hours there seems to be no way (at least with a windows platform) to have OH2 running stable (also after a system restart) with the latest Zwave Snapshot. And I am not talking about the experimental security Zwave branch, but the 2.1.0 Snapshot.