Flickering & freezing – Next Transit - for CTA Review

Needs software iOS 8 update & upgrade support. Great app!! However, I was trying 2 track a couple of buses; during use, the list of bus stops / route #s froze numerous times, & was unable 2 scroll up nor down. It was flickering. Please, please fix its network connectivity issues. Thanx much!!
Review by Disability rider on Next Transit - for CTA.