Yeah, it’s my understanding that lightmaps aren’t used when you disable static lighting. When I build lighting it finishes in like half a second so I’m pretty sure it’s not an issue. Also the fan is a skeletal mesh so it also shouldn’t be using lightmaps for that reason too. The material is just a basic material. No translucency or anything. Yeah, the lighting in UE5 has been completely rebuilt so I don’t think there’s any point in comparing.
Thanks a lot for trying to work out the issue with me. I just sent the final render to my friend so I’m happy with the result with using a texture for the shadow and turning off the shadow for the fan 