EDIT: This was not a problem. This was me being forgetfull.
If you forget to set the Plasma Object tick (in its Plasma Object panel) for the empty used to set the reflection point ...

- Screenshot 2020-08-07 at 16.34.00.jpg (34.24 KiB) Viewed 2756 times
you will get this kind of weird effect ...

- walls.jpg (47.7 KiB) Viewed 2824 times
.
Simples.

when it comes to Age creation ... "DOH" seems to be my middle name...