I wrote that wrong(“I just needed to wait a bit.”)
I meant to say: when I toggle use indirect lighting engine stops working but I just need to wait a minute and then it starts working again.
Sorry my English is not great 
I wrote that wrong(“I just needed to wait a bit.”)
I meant to say: when I toggle use indirect lighting engine stops working but I just need to wait a minute and then it starts working again.
Sorry my English is not great