Toggle button does not work, VoiceOver reads out the toggle button label but it won't turn on/off when tapped twice. This bug also happens on Android TalkBack.
I blocked access to all functionality in the settings pane.
SOLUTION: we replaced all ion-toggle UI elements with ion-checkbox. This allowed VO to access the buttons and change the state of the button. However, it did not report the state of the UI on VO, so we had to add and hide a text element that read out the state of the checkbox ('item selected' or 'item not selected').