four positive tests (out of 360 people) during the check-in phase on “Sistas,” none of which involved cast, and a cast member of “Ruthless” tested positive during check-in.But the bubble held up; there were no positive cases in camp once cast and crews had checked in and production started.It is TBD what Perry will film next at his studios. Coming up is a birthday break for the media mogul, whose birthday is Sept.