Try using the AUR picard-git package. Picard 1.3.2 is 2+ years outdated. 1.4 will be released on February 14th though. See also:
If it still doesn’t work with picard-git, let’s XFUT to a new topic and I’ll try and debug it with you. (Or you can come join us on IRC!) I’m an Arch user, and several other MB contributors also use Arch.