After working quite a time without any problems it stopped working again on Basecamp 4.7.5. and Fenix 7X pro sapphire solar also in beta 16.22
It worked before firmware 11.28 without problems . Then with firmware 11.28 it stopped working and with release 13.10 the problem was solved.
i noticed then with 16.18 and 16.22 it stopped again.
See also thread in Basecamp Windows Forum: