I can not see a volume in the viewport at the Dynamics level when using v.20.5.684 on Mac OSX, only at the Geometry level. When I use the Gas Axis Force node micro solver, only the widget shows at Dynamics level, although it does affect the simulation.

Would this be a bug or a limitation of the MAC OSX or some setting I need to change. It does show in v18.5 on a Mac, so it does not seem to be related to a Mac.

I had to upgrade from an earlier version to fix another viewport bug that was not recognising a light when using volumes. This version fixed that issue.