GGpairs, correlation values are not aligned

Question

I am trying to create a correlation matrix using GGpairs, the scatterplots are coloured by group (reg or irreg). The correlation values plotted on the upper corner are not a

Answer 1

This seems to work:

ggpairs(data=dat4,
        columns=1:5, 
        title="correlation matrix",               
        mapping= aes(colour = irregular), 
        lower = list(
          continuous = "smooth",
          combo = "facetdensity",
          mapping = aes(color = irregular)),
        upper = list(continuous = wrap("cor", size = 3, hjust=0.8)))