Hello,
I have exported all contacts from Google via vCard and imported them into NC.
The contacts are also all there.
When synchronizing on the iPhone, not all of them are displayed afterwards.
I have created a comparison and in the NC created a contact with the same data, this is synchronized on the iPhone.
Contact imported from Google, which is not synced to the iPhone:
BEGIN:VCARD
VERSION:3.0
FN:Barbara
N:;Barbara;;;
TEL;TYPE=CELL;VALUE=UNKNOWN:+49 160 123456789
ADR;TYPE=HOME:;;Straße 11\n;Stadt;;00000;Deutschland;
Großestr. 11\nStadt 00000\nDeutschland
BDAY;VALUE=DATE:19590830
PHOTO;VALUE=BINARY:https://lh3.googleusercontent.com/contacts/********_***
mx_*****************************************
UID:0
REV;VALUE=DATE-AND-OR-TIME:20230519T132430Z
END:VCARD
Contact which I have created in NC and is synchronized
BEGIN:VCARD
VERSION:3.0
PRODID:-//Apple Inc.//iOS 16.4.1//EN
N:;Barbara;;;
FN:Barbara
TEL;type=HOME;type=VOICE;type=pref:+49 160 123456789
item1.ADR;type=HOME;type=pref:;;Straße 11;Stadt;;00000;Deutschland
item1.X-ABADR:de
BDAY;value=date:1959-08-30
REV:2023-05-19T13:20:13Z
UID:0
END:VCARD
I see it as a bug in the contacts app from NC because I have done this many times in the past and there were no problems.