Dorico 6 does not recognize font

Hello, i’m facing a problem that prevents me from using Dorico 6.

in Dorico 6, the app does not recognise the fonts that i have install on my pc :

here in Dorico 5 he detect it :

so when i open a project where i use a font (it’s not specific for Eb Garamond, it’s for all the fonts i have) Dorico 6 does not detect it and change the font to Arial :

for reference, here in Dorico 5, same project :

I try reinstall Dorico 6, restart my pc, lauch as administrator, but nothing change.

I’ve downloaded the EB Garamond font family from Google Fonts and installed it on my own computer, and it works OK in Dorico, as expected. I’m not sure what would cause it not to be detected.

and another problem is that I can’t use the musical font Valerio which is based on a font install on my pc

Dorico 6 :

Dorico 5 :

what’s strange is that it was working normally, but today it has stops working. And I have Dorico 6 installed on a laptop and all the fonts is detected and work.

I manage to find the solution by uninstalling Dorico 6 and every folder, file and regedit keys, restart my pc and then reinstall it, and now everything works!