When I read in the portrait view, I occasionally note a missing line in a table (see example from Decker's Greek grammar). I have observed this in a Biblical text as well. This occurs on both of my iOS devices:
Accordance for iOS 2.7.3 [iOS 10.3.3 iPad 4th generation], [iOS 12.1.1 iPhone XS]
missing line.PNG 742KB 0 downloads
The line for accusative singular (AS) is missing. Turning the iOS device to landscape mode and back to portrait restores the correct display of the data.