Problem with contacts

Hello everyone and happy new year,

Since the update of Fairphone Open to Fairphone Open 19.11.2 / Android 7.1.2, I have found 2 problems with the contacts.

1 - In my car (a Mazda with integrated GPS TomTom), the integrated phone no longer accesses the address book but only the last numbers called. Before, it was working.

2 - The “Signal messenger” application no longer accesses the address book either.

I have read 2 Topics about the same problem, but without solution (the rights are correct in the Android parameters).

I hope someone has an idea.

Thanks in advance

C. Hinque

I should add that it is impossible to access the Signal account via Android settings.