Weather presets don't change cloud type

[Lixma 06]

Unless I'm doing it wrong - when selecting and loading a weather preset from the list in the mission editor all the wind stuff changes but the cloud type does not.

In the video I select 'Summer; Heavy Thunderstorm' but when entering the mission the sky is a lovely 'Scattered 2' with no rain. It is blowing a gale, though.

Weatherbug.trk