Weather sliders not updating in live view

Hi, I am having trouble with the weather slider in Twinmotion 23 and 24. If I change the slider from sunny to cloudy (middle position) nothing happens, sunlight effects are unchanged. If I wait a minute or two and maybe change something like precipitation, suddenly the sunlight disappears and I get something like a cloudy overcast effect. And then a minute later it will flip back to sunlight, despite the weather slider remaining in the cloudy position.

I am using Twinmotion 2023.1 with Archicad 26 Solo, on an Apple M2 Max with 32GB RAM running Sonoma 14.5.

Any thoughts would be appreciated, thanks.

Is the HDRI setting turned on by any chance?

Hi, no HDRI is not turned on. Basically it just seems to stuck on sunny, the weather sliders have no effect on cloud or seasons.