Hi @macdigital , thanks for your question. Can you please share PiP related configuration for Bitmovin player and the version of Bitmovin iOS player SDK.
In general, you can find information on PiP related functionality in our community post at Picture-in-Picture support in Bitmovin iOS player SDK
Please check if you are already setting PlayerViewConfig.pictureInPictureConfig.shouldEnterOnBackground as true to allow playback to enter PiP mode when application is backgrounded.