Incremental creating multiple copies instead of Hardlinks?

I found out that it is just a windows issue: I do use LSE (Link Shell Extension ) do display icon overlays over hardlinks. BUT, in the latest Windows 10 releases, a number of overlays have been addes (mostly OneDrive related and since there is a limit on the number of overlays an icon can show, I did not get the Hardlink one)
(check )
Long story short: Removed OneDrive overlays and discovered that URBackup was correctly creating Hardlinks indeed.