When you cross one of the boundaries, X-Plane changes its internal coordinate system and we need to re-generate the clouds that surround you.Īlso, make sure 'never change visible weather' is activated in RWC if you're using it and flying with real world weather.
I suspect you're flying around a corner of one of X-Plane's one-degree tile boundaries. Nothing changed in 4.6 with regards to cloud formations, unless it's a storm system.