This is my tibble with emojis. Column name contains emojis and text.
# # A tibble: 4 x 2
# name   number
# <chr>   <dbl>
#1 .    63150.
#2   1289.
#3 &     1387.
#4     5055.
When I try to plot it, it looks like this:
library(dplyr)
library(ggplot2)
df %>% 
  ggplot(aes(name, number))+
  geom_bar(stat = 'identity')+
  coord_flip()

Why the emojis don't plot correctly?