D5 render creashing rhino

I dont know why but when i click on disconnect from toolbar in rhino. Rhino closes suddenly. even d5 render takes lot of time to load.

Check your system: Ram, GPU drivers, Rhino software updates, PC performance…

My system specs is decent for simple single house scenes-
Processor- Ryzen 7 5700g, Ram-16 gb, Rhino v7.2
All other softwares works with no problem.