Aha! Very helpful, thank you. You were exactly right that the the system language is interfering. This is due to some horribly stringly-typed code. In the future it will be redone to support translations with no problems, but for now I have the translation turned off so it will work. I just pushed out a fix that should be in the PPA within a day. It should fix all your smart playlist problems. Thanks for the report!
Aha! Very helpful, thank you. You were exactly right that the the system language is interfering. This is due to some horribly stringly-typed code. In the future it will be redone to support translations with no problems, but for now I have the translation turned off so it will work. I just pushed out a fix that should be in the PPA within a day. It should fix all your smart playlist problems. Thanks for the report!