It would be interesting to test that .vdb file here if it's possible.
For the .vdb files, it is recommended to launch a render in Maxwell and stop it once it has started. Then you should check the Console to see which grids does that file include, their ranges and the type of UVs required (vector, or float); Studio includes several UVs of the different kinds so you can use them with the different .vdb files. Here is more information about it: https://nextlimitsupport.atlassian.net/ ... olumetrics
In the case of Cinema, you can create a null and assign a Maxwell volumetric tag to it and load the .vdb file. If you launch a render, the volumetric will render black; you'll have to assign a material. The primary field is usually density or d and the rest of the grids can be added below separated by commas.
I hope this helps.
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