I am facing the same Issue, The sandboxed app is not able to launch the PiPAgent and thus the native PiP is not invoked. @diegoreymendez Did you had any luck to get this enabled? Did you get a resolution for the issue you were facing? Thanks!

Hi tuggif Did you got any resolution for this? We have faced the same issue and unfortunately Apple reviewers just paste a standard answer that auto clicking is not the intended use of the accessibility API and pastes a link to guidelines "help users automates processes is not the intended use of the Accessibility API and does not comply with guideline 2.5.1 of the App Store Review Guidelines." However I can not see anything related to the intended use in this pointed guideline. Were you able to manage this by some other means? Thanks!