Fixed a bug with V-Ray not showing in the HDR Light Studio interface.
Rhino 7 support added 6th April 2021
We currently advise when using HDR Light Studio to have autosave turned off.
The HDRI map data stored against the HDR Light Studio Environment makes your Rhino files take longer to save. We are working at speeding this up. The data is not large, it is due to some processing it needs in order to be saved.