Unable to fillet this edge but why?

Hi,
Having followed the steps here for BlendEdge, my result sees naked edges.:confounded:
No one else has such, I have started with a pure simple shape. same 1.5 and 0.9 as Mark. Why me ?
You had my shape mark, did yours have naked edges as shown, I followed exactly your steps.

Its just one pitfall after another.

see attached.

…
Now here is an interesting one !
How can I create an eliptical section fillet ? I see only a ball option, no means indicating its two dimensions.
Base of cylinder needs 2.4mm tall and 1.98mm wide to match shape I am replicating.
(see attached dims on item on base)
eliptical fillet need and naked edges 0pnt 9 and 1pnt5 BlendEdge command.3dm (1.1 MB)

Ref Jing, trying Ctrl and minus key, nothing resizes. cant see pause when viewing the key areas to study, the upper screen area.

Steve