If I tap on an asterisk next to a verse number in the Nestle-Aland 28 Greek New Testament, I get a pop-up with some numbers. For example, on John 1:6, I get "2, III", where I assume the III is the Roman numeral 3. In the desktop version of Logos, clicking on the asterisk does nothing.
What does this mean and why do I get this behavior on the mobile app, but not the Windows program?
I am using the Android version 5.16.3 on a Samsung S7.