I encountered this when playing around a little with the UI. I figured out how to create boxes surrounding the different times in the time selection menu. I can’t explain it well with words, but I have produced a video demonstrating how to reproduce the issue.
How to Reproduce
Open Infinite Flight.
Select all four menu options with a finger on each of them. (Watch video for demonstration.)
Press “OK” in all of the menus until you get to the time selection menu.
See the boxes around the different times.
Additional Info
iPhone 6 / iPad Air 2
iOS 9.2
IF Version 15.12.0.28592