I have an iPad Air 1st generation and iOS version 12.4. Piano Companion has been updated to version 6.29.802 a few days ago and since then the app has not been able to change the settings. Neither speech, nor selection of instruments, etc. Zero reaction. In addition, I noticed that the app is no longer accessible via the Dock menu and is also slightly darkened, the App icon.
Thanks for help and greetings