Another zebra issue - iPhone app.

Greetings folks.
I can’t seem to get zebras to show up when I adjust shutter speed to overexposure. They only seem to show up if I overexpose with the exposure/EV slider or the ISO slider. Is this normal?
Thanks.
I can’t seem to get zebras to show up when I adjust shutter speed to overexposure. They only seem to show up if I overexpose with the exposure/EV slider or the ISO slider. Is this normal?
Thanks.