In 1.0.1, the default value for the key-direction directive was changed to "bidirectional" for compatibility with the OpenVPN 2.x branch (in 1.0.0, the default was "1"). In general, profiles imported before upgrading should continue to work, because the previous default is retained for such profiles, however if you are importing a new profile in unified format, be sure to follow the updated FAQ entry above for setting the key-direction directive.