I updated to 1.16 recently, no clouds appears after waiting for 15 mins.I uninstalled xenviro and deleted xenviro.prf, reinstall the 1.16, but unlucky same result. The xenviro did showed correct METAR. The tonemapping and those 'colour slides' is working, so just the clouds not rendering. I'm running on Xplane 11.51(Vulkan) with up to date graphic driver. Should I file a ticket?