Can't switch language layout after update IOS15.4
I use ipad mini 6 with external keyboard via Bluetooth. Usually I use 2 language keyboard layout after I update iOS 15.4 I can't switch keyboard layout. I try to reboot, remove then add layout but it still not working. I change the keyboard it still not working.
I inform this issue to apple support app but have no any feedback.
thanks.
iPad mini 6, iPadOS 15