Hover skip one value in ggplotly

Hi, guys.
I have an issue with the tooltip not showing when subset has a single observation.
https://rpubs.com/Ammar/257591

I’m trying to avoid the usage of frequency table here.

I’m using:-
packageVersion(“plotly”)
[1] ‘4.5.6.9000’
packageVersion(“ggplot2”)
[1] ‘2.2.1.9000’