To some of my contacts I am geting this error message, which with the before version I have never had any problems: "2021-10-18 11:10:22 | Warning | Google contact "Piotr" has custom phone number labeled "", this phone number is not synchronized with Outlook. Please update contact at Google and change label to standard one (home, work, other, ...)."
And it's like 100 of them... It seems that these are the latest contacts which i put on a phone...
Please either DON't change the label of a phone number, or if, then change it to a standard label (not own), then it will work (e.g. home, work, other)
I think I have also found a solution for you in newest version 4.1.23: I just distribute phone numbers with empty types among the valid ones (Home, Work, Mobile, Car, Other). But of course only possible as long there are empty phone numbers available from the valid types