Still no luck with iOS/iPadOS 15.6 beta or 16 beta? Btw, I contacted Yamaha and they said they were aware of the issue and had reported it to Apple: https://uk.yamaha.com/en/news_events/04_dtxm12_notice.html Is Apple also ignoring Yamaha, or is this just not a pressing issue for Apple? Or they just moved on? Yamaha say it's a "temporary inconvenience", so I guess they have some faith.