I was using Memrise on my iPhone today and for typing exercises always type with the iOS keyboard. It was that I tapped the keyboard button at the top of an exercise and then the iOS keyboard was always showing up for a typing exercise.
However today when I came to a typing question the Memrise (limited) keyboard was showing. I tapped the Keyboard button at the top which was rather unresponsive, but after a few taps the iOS keyboard came up. I answered it and moved on, but when the next typing exercise came up the Memrise keyboard was back again.
Is this a bug? Is there any way to ensure that the iOS keyboard consistently appears when a typing exercise comes up? It’s quite annoying to tap it to come up every time.