Smoke simulation in Blender 2.80

Hi folk,
Anyone could help me with this issue?

I’m begining my smoke simulation at frame 500 but before that my domain is full of smoke as it shows in the pics. Then the smoke dissappears and then it begins from frame 500 everything is normal.
I tried to bake, i tried to render, it shows in the render image … ???

Have you tried to delete the bake and then bake it again? It’s some weird behaviour

Is this Mantaflow or the old smoke sim?

Yes, but it still the same. I even tried to clean the cashe and temps in my computer and restart.
I tried to delete the smoke and begin from the top. Nothing works!!!

It’s the normal “Quick smoke”