Have the ability to turn on/off zoom while using a mobile. Every time someone taps on dropdown menu it zooms hiding all buttons. It’s not end user friendly
This bug also causes issues when rotating devices. If a user pinches to zoom, then rotates their device, then rotates back to the original position while being in a zoomed in state, the whole layout of the apps becomes a jumbled mess. With responsive design an app does not need zoom ability, it will reflow to ensure controls are sized appropriately. This bug is incredibly frustrating to end users.