[V6] Fillet doesn't work ok (Fillet, not FilletSrf)

A simple 2D task.
Fillet the arcs with R10 where the green circle is.
It creates an arc, but not where it is expected.
In V5 it works ok.
image
FilletCrv.3dm (30.6 KB)

Charles

EDIT:
I now see the same here:

And no, it is not ‘nice’.

Worked fine for me. see fileFilletCrv_done.3dm (28.1 KB)

https://mcneel.myjetbrains.com/youtrack/issue/RH-46073

-Pascal