I have exactly the same issue and shadow type. In 4.27 and also 5.0.3. I have tried all kind of view modes - nothing.
I`m trying for days now to narrow it down without success.
I able to reproduce this:
- Create new 4.27 project (I chose VR template)
- Create new empty level
- Add a plane and a few static spotlights
- Build lighting
The shadow will now follow the spotlight if I move it around.
Can anyone help?