Questions on the use of software

When i use cycles preview,

it shows this picture

and can’t preview smoke

How can I solve this problem

1 Like

AFAIK devtalk is not better place for make support question, however unplug from Mateial Output any node from Surface and plug only Volume node. IMHO channel should be more appropriate place to your question. material example is made on right selected cube

And this seems to have nothing to do with the material, because it can be shown before, because there is a problem that caused the software to exit halfway, and then can not be normal preview, simulation smoke when the cycles can not be previewed