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)

首先使用等效的 facet 数据复现所提供的 ggplot 示例，重点关注在某个 facet 类别中缺少值的绿色和青绿色块。跟踪交互式图表如何为分面柱状图生成 hover 文本。当这些块的 hover 文本能够像蓝色块一样一致地显示时，即表示完成。