GH custom preview not working in rendered mode
since Version 8 SR14 (8.14.24345.15001, 2024-12-10)
Since this update was installed some GH custom preview elements do not show in rhino rendered mode WHEN SHADOWS ARE ON, but do when shadows turned off…
I copied the whole script into a new GH file and it started to work again, but then it stopped!!
You can try a newer version or try troubleshooting a possible conflict with a 3rd Party plugin.
Troubleshooting typically involves starting Rhino in Safe mode and loading Grasshopper via the command line with GrasshopperLoadOneByOne and saying no to 3rd party plugins.