Hover text do not show up if values does not exist in BOTH facet category

Hover text exists in blue block

Hover text does not exist in either green or torquise block

Can't share the source data but what's happening is something like below:
Facility,ProductSubFamily,Measure,Qty
A,x,Commit,0.2
A,y,Request,0.9
A,d,Commit,0.8
A,d,Request,0.5
A,e,Commit,0.7
A,e,Request,0.3
...

        ggplot(data = dat,aes(x=Measure ,y=Quantity,fill = ProductSubFamily)) +
        geom_bar(stat = 'identity')+
        facet_grid(.~Facility,  space = "free", labeller = label_value,switch = 'both')+
        theme_bw()+
        theme(
          panel.grid.major.x = element_blank(),
          panel.border = element_blank(),
          legend.position='bottom',
          legend.title=element_blank(),
          axis.text.x=element_text(angle=30, hjust=1)
        )+
        scale_y_continuous(labels = percent)

Start by reproducing the supplied ggplot example with equivalent facet data, focusing on the green and turquoise blocks where values are absent in one facet category. Trace how the interactive chart derives hover text for faceted bars. Done means hover text appears consistently for those blocks as it does for the blue block.