Can't make clouds

Using the Enviroment Light Rig and disabling the default day cycle causes the volumetric cloud to disappear. This essentially makes it impossible to use Eviroment Light Rig. In the 25.10 update it was written that they were added to UEFN as a texture, but they are gone.

Maybe you can use the day sequence device, disable everything except the cloud settings

This is not exactly what is needed, because this device cannot be controlled at all and it is not in the api. + there are unpleasant bugs there.