All incoming calls are reported as unknown, even though all permissions have been granted to the calling app.
In the call list, they are marked as blocked numbers.
If I call back from my contacts, the contact is displayed.
Can you list your device and iodé version?
Check if Dialer app > Settings > Blocked Numbers > Unknown is activated (that shouldn’t be a problem if so, but with the unknown bug at least it would allow the calls to appear until the address book connection is working again). Also check “Spam Blocking” there, maybe again temporarily disable.
Next, does the Contacts app also have all permissions enabled (assuming you have the Dialer app permissions all enabled as you mention)?
Not knowing what else to suggest, you can reset the Dialer app by Long Press Icon > App Info > Storage & cache > Clear storage.
I’ve also experienced this bug and just put up with it the past few months. I’ve replicated with stock dialer and “NovaDial” on fdroid. This happens with contacts as well as incoming calls from non contact people
Welcome! Nice to have a celebrity here (yes I think I know who you are unless someone hijacked your username and details 
If I am right this is on a Fairphone 5? Was it this way from first install? Please check the settings I note above, then give a bit more background to see if we can identify the problem better (also note the iodéOS version).
@dirteur I never heard back from you on your device and iodéOS version?
Haha I am not sure how much of a celebrity I am. But you are correct that it’s the same person from mastodon (my mastodon is on my profile here). I did try the steps above to no avail, however a friend of mine replied to my mastodon post suggesting I disable 4G/LTE calling and that seems to have resolved the issue. This is on my fairphone 5
1 Like
Well that is a bit strange. Carrier shenanigans are carrier shenanigans so it seems! Possible APN issue?
So are you then on 3G or 5G?
Ahh yes So no issues with mobile data? Meaning APN seems correct, right?
I seem to get 5G signal OK. Where I am the signal is spotty anyway but in work (in the city) it seems to be fine.