Playback at wrong pitch

[ricobasso]

I've just started using iReal Pro on my Windows 10 pc having had it on my iphone for ages. This week I downloaded the latest cerion of Bluestacks and the Android iReal Pro App. It all works great except for one thing - playback is not at the correct pitch. e.g. a song written and set to D plays back in B! It makse no difference if I select a different practice key, the playback pitch stays the same. Are there some initial settings I need to setup? I've watched Anton Browne's excellent Youtube video but there's no mention of playback pitch errors on there.

edit: I should add that the song in question plays at the correct pitch on my tablet and iphone.