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Problem with detectMultiScale on Android (OpenCV3)

Recently I upgraded OpenCV from 2.4.11 to 3.0.0-rc1 in my Android application. After that I face problem with detectMultiScale method which works weird. When I call this method first time it ends in ~150ms and returns good results, but every next call (even for the same image) takes many seconds and gives totally wrong results. With OpenCV 2.4.11 everything works fine.

Was there some changes to detectMultiScale method which can cause such behaviour?

Problem with detectMultiScale on Android (OpenCV3)(OpenCV 3)

Recently I upgraded OpenCV from 2.4.11 to 3.0.0-rc1 in my Android application. After that I face problem with detectMultiScale method which works weird. When I call this method first time it ends in ~150ms and returns good results, but every next call (even for the same image) takes many seconds and gives totally wrong results. With OpenCV 2.4.11 everything works fine.

Was there some changes to detectMultiScale method which can cause such behaviour?