@thenliong , we’re well aware of these limitations and thanks for your report - To at least make it a bit more clear as to why some lighting/objects are not faithfully rendered in the reflections check out this article here. You may also perhaps look into replacing any of your emissive lights with actual light sources instead, like some line/rectangular lights in this case for example for the image on the wall. This should help with having the lighting active even when not directly visible.
On top of that, depending on your hardware you could also try to “fake” the mirror reflection as shown in this video here - Which means basically duplicating the scene behind the mirror (transparent panel in that case) to give the illusion of a perfect reflection so to speak.
Let me know in case any further questions come up.
