PDFCreator 1.7.2 breaks PDF-T functionality

Basically uninstalling PDFCreator 1.7.2 and re-installing 1.5.0 gets things working again.  I don't know whether the problem is the embedded Ghost Script 9.10 (since 9.50 works) and don't have the time to test this.  But I suspect that is where the problem might lay.  Whatever the cause, creating a retained PS file and opening it with 1.5.0 works, whereas 1.7.2 produces a single blank page.  So the problem is either PDF-T not making a GS 9.10 compatible PS, or PDFCreator 1.7.2 somehow screwing it up when reading the PS file.