welcome to forum.
I cant see any error in your config lines and tested preing here with 100% success. Anyone else having this issue?
You could try a upgrade to ioa 0.7.8.
If no go then either contact me on irc and we'll figure it out somehow. Also check debug for clues
thx for the quick reaction, will uprade to 0.7.8. and try that, need the request thingy also wich is disabled in the release i'm using, let's hope preing works, otherwise i will look you up.