Matching Cubemap with SSR

I have a very hard time setting up SkyLight correctly so I can still use Post Process SSR Intensity 100%

https://i.imgur.com/tzGUuEb.png

Hard to see, but it’s obvious effect where you have solid object reflections mixed with a sky (50%). It should cover reflection being a solid object (100%).
Maybe that’s recommended way of doing it, but I don’t want to leave this effect where I see sky mixed with solid object covering that sky!

So I can start tweaking values of SkyLight Cubemap to match 100% SSR so transition is seemless.

But when I do it I ruin my whole scene, shadows are getting dark and reflections are not same good as before.

Before:

https://i.imgur.com/6RYCTZq.jpg

After:

https://i.imgur.com/E5I1Mby.png

Only with Intensity like this (0.3 cd) Cubemap matches SSR!

Any ideas how to achieve nice blending in a surface between SSR and Cubemap?
I was thinking about material which boost SSR reflections, cubemap reflections or both to match it on a material basis.

Still after 3 months I couldn’t find solution. Seems UE4 cannot handle this case.
There is literally no way of matching Skylight Cubemap with PP Ambient Cubemap.