[otrs] otrs-2.2.0-rc1 gnupg

Hi, I am looking for some help with otrs-2.2.0-rc1 and gnupg. I setup the new otrs-2.2.0-rc1 to give the OTRS::ITSM module a try. One of the things i need to use is gnupg to encrypt outgoing mails which works fine with my running Otrs 2.1.7. With the new version i recieve the following error message when i try to use inline signatures Got no MainObject! at /opt/otrs-2.2.0//Kernel/System/Crypt.pm line 82. I would be grateful for any suggestions or help in any way. Thanks regards Simon