V9 - Glowing objects in 3DView

[LightningFM]

Hello Support,

First, I do agree with Tim's feedback, there are plenty of very welcomed features in V9 and I'm having as well a positive experience so far.

I noticed a small visual issue with the new 3DView engine: it seems that objects (including the non-textured "old" models) get covered with a semi-transparent layer/reflection when being illuminated by wash-type beams.
The glows appears with Flat/Gourand/Phong rendering mode, however, the additional layer is "visible" also in Line render mode, with the lines of the reflection simply fading out outside the beams.

Here are some screenshot that can explain better the situation: https://imgur.com/a/o9Iwm6F

I'm on Windows 10, GTX950/PCle/SSE2