Just for completeness: I think this is the same iOS/AUv3 bug as reported here:
https://forum.juce.com/t/br-popupmenu-withtargetcomponent-broken-in-latest-tip-auv3/67247/4
Just for completeness: I think this is the same iOS/AUv3 bug as reported here:
https://forum.juce.com/t/br-popupmenu-withtargetcomponent-broken-in-latest-tip-auv3/67247/4