In my private online room I experienced that wherever I put the "weather changeability" slider I have no variation of weather condition during practice, during qualifyng and during race.
Someone else have experienced same issue?
After some days of testing I can assume for sure that the "weather changeability" slider on online room settings does not work. Also if you set it to the maximum (60) you just some slight changing of weather during very long race and not changing at all in short race (5-6 laps).
In garage free practice you have weather changing also during the first lap if you put the slider to the maximum (in free practice the slider can move just up to 10)