LEChauve!!!

The best tuner but since a few days, a big bug appeared. Impossible to change the pitch. It is stuck on 440Hz. To change to 430 for instance, after changing the setting, you have to turn the wheel to A flat and then to come back to A to get finally an A 429.5Hz... Same problem whatever the pitch you choose. (IPhone 5S iOS 10.3.3)