Even when I setup the simulation using 'quick smoke' I always get just a box in the viewport:

this is render preview

view port display

I tried to re-install and reset the settings and tried to use many different volume materials. In many tutorials they recommend to add a principled volume and everything should be fine but in my case I always get the box and I don't understand what I'm missing here.

Q: Why my domain is rendering like a box in preview whenever I do smoke simulation?

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    $\begingroup$ So you are opening a brand new blender file with a default cube and do quick smoke and you see just a box in rendered view? is that right? if yes, can you please provide your blend file and tell us, which version u r using? $\endgroup$
    – Chris
    Commented Jul 6, 2021 at 8:06
  • $\begingroup$ I don't know why but after reinstalling blender 2.91 smoke is visible in the render view after I increased the density. but the render animation preview shows the same cube shape as the above image. <img src="https://blend-exchange.com/embedImage.png?bid=2QEXyEEX" /> here is the file $\endgroup$ Commented Jul 6, 2021 at 8:45
  • $\begingroup$ now I'm suddenly facing another issue with the same file path tracing in render view flickering. $\endgroup$ Commented Jul 6, 2021 at 8:50
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    $\begingroup$ can you please check whether your cache path is ok? [1]: i.sstatic.net/ynfwh.png $\endgroup$
    – Chris
    Commented Jul 6, 2021 at 9:06
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    $\begingroup$ @brockmann: his blend file is already on replay...did not help... :( $\endgroup$
    – Chris
    Commented Jul 6, 2021 at 9:16