Hi,
I suspect what's happened here is "just" a drawing issue. The cloud controls aren't really there and will have been destroyed, I guessing you couldn't interact with them. They just weren't overdrawn properly when you switched param views, leaving what Oshyan calls a "ghost image". I haven't seen this myself for a long time, but occasionally it seems it happens still on Windows. I will make a note to try and fix it up once and for all prior to release.
Regards,
Jo