Artifact packaging problem

I've just tried the new artifact packaging of TC 5.1 EAP but seems it doesn't work properly. I defined the artifact paths like this:

RapX.Service/Global.asax => service.zip
RapX.Service/*.svc => service.zip
RapX.Service/*.config => service.zip
RapX.Service/bin/*.dll => service.zip/bin

but in produced service.zip, it only contains *.config files.

When I tried the above artifact paths setting with TC 5.0.2, all the files were copied to "service.zip" directory as expected.

Do I miss something?