Windows 10 no sync pops up if I change font in upper left label

I was going to use my wife’s, Win 10 64, laptop to demonstrate creating mailing labels and if I change the font in the upper left label there is NO floating sync button to force the change. On my Win 7 64 machine the sync is floating there.
Both machines, 10 on one and 7 on the other, I have installed 6.0.2. I am going to remove 6.0.2 and put on 5.4.5 and I will do a total remove with Iobit uninstaller so registry entries are gone.
Any thoughts?