Umlaute within registration (Password / SUP 2.2 SP 2)

Hi,

we are having another problem through the registration of a user with SUP 2.2 SP 2. Using a password with any Umlaute like 'ä,ö,ü,ß', SUP logs are showing an exception and the connection gets lost.

Next to the problem of Umlaute within the mobile user name this is another problem, is there a known issue?

Thanks in advance,

Christian