UPDATE:
after several tests
I realized the following: 
- Both with the installation of S15 or S16 HFZ exported,
- Either by creating / changing transition of PS16
you create only for the library transitions Hollywood HFX editor:
Local Disk (C :) \ Users \ Public \ Public Documents \ Pinnacle \ Content \ HollywoodFX \ Effects
filetype = *. hfx
DO NOT update the library transitions instead of Pinnacle Studio 16:
Local Disk (C :) \ Program files (x86) \ Pinnacle \ Studio 16 \ Plugins \ RTFx \ HfxXML
filetype = *. png
*. xml
Therefore, the problem is this: HFX editor S16 after changing product or a new transition / effect does not produce the file. PNG and its file. XML library for PS16. 