Pluggo has been updated to 3.1.2. Please note that the installer says 3.1.1 in the Readme, but it installs 3.1.2. Readme is the same for 3.1.1 which lists updates as:

Changes in Pluggo v3.1.1:

• Fixed a problem where you couldn't type the letters "c" and "x" into Authorize Pluggo when entering your authorization code.
• Plug-ins now detect the presence of VST Wrapper as a host and do not load, fixing compatibility problems with VST Wrapper in Digital Performer. Note that any non-standard Pluggo plug-ins will need to be updated with the Plugmaker 2.1.1 included in this release to have VST Wrapper compatibility.
• Automation optimized in Audio Unit hosts.