Hi, i am having some issues with Lumen Reflections, i was testing the High Quality Translucency Reflections in PP Volume, and it worked really good, but then after i launched the viewport it just seems to turn off the High Quality Translucency Reflections, it is still on in PP, but does nothing when i switch it on/off, what it can be in this situation? I tried rebooting the PC, restarting project multiple times, switched maps, used different PP volume, nothing worked 
So the answer to this is that when Scalability settings below Epic, High Quality Translucency Reflections does not work.