Shadows controls disabled (on web and iPad) when opened from shared link

When accessing my sketchup model on the web from a shared link (generated from Sketchup Pro 24.0.554), I am finding that the shadow controls are ‘greyed out’ so we can’t change the shadow date/times.

Just wondering if there is some preference box I need to tick to enable this?
It didn’t seem to be a problem with previous versions.