Hi
Open CUV (with RVI) to 1 John 2:18 look for "小子們哪" where "小子們" is aligned with "παιδίον"
Right mouse click on "小子們" or "παιδίον" you get the following screen shot - all the underlining RVI information are not there in the context menu.
However, if you click on the next word "哪" you get the following screenshot with the RVI information instead in this context menu.
JK
MacBookPro Retina 15" Mid 2014 2.5GHz RAM:16GB SSD:512GB macOS Catalina 10.15.2 | iPhone Xs Max iOS 13.3
Just tested for all occurrences of this word used by John all have the same problem.
Found another instance Eph 6:2-3 compound word "第一條" / "πρῶτος" where RVI information is not in context menu.
Found another one in in 1 Tim 5:1 "少年人" / "νέος" (younger man in ESV)