You are most welcome. I seemed to remember having to re-download it a while back with FCP 4 for some reason. Anyway, it fixed the problem I had. Glad it helped you.
Cheers!
Boris FX suggests reinstalling from your FCP install disk. You can also download from here: https://www.borisfx.com/products/calligraphy/
The new plugin will replace the old version.
Hope this helps.
Have a great new year!