Please help. Lost all powergrades on resolve 14 upgrade

This morning I upgraded from resolve 12.5 to resolve 14. Before doing so I did a backup of both my local and my PostgreSQL databases. After upgrading to resolve 14 I launched resolve and restored my backup of the PostgreSQL database. All my projects came back propperly but when I open them all the powergrades are missing!! The stills folders of the project are there but no powergrade folder appear. Can somebody help me please? It's 6 years of work gone in a second


I'm on a 2010 MacPro running OS Sierra 10.12.6

Thanks in advance,
Blai