Cant see Examples scenes

[RRafael]

Hello friends, I already download the version for 2018 and 2020 and in the two versions the same thing happens to me, I can not see the example scenes the viewport is left in black (Nitrous D3D11) and a warning below that says Updating twflow001 and there is chash the 3ds max. in the PC where I installed the 2020 has the Arnold render working, I can even build the icon Tyflow sy operation window only that I am interested to see the example scenes and I can not, has happened to someone?