I put "everything PQ" into "PQ.lvlib"* and I was able to build the test PPL. When I added the existing PQ classes to PQ.lvlib I had to fix an error inside "Connection Record.vi" unbundle to get the DVR. Perhaps that was the root of the problem before, but creating "PQ.lvlib" let me fix the problem before building.
*thanks to @Francois Normandin for the lvlib hint