Ggplotly animation and geom_col

Plotly R, MATLAB, Julia, Net Plotly R
1

I am fighting to create an animated population pyramid, and stumbled into an error on ggplotly.
Let me play with the first example on Intro to animations in ggplot2 and add a couple of dots

library(plotly)
library(ggplot2)

df <- data.frame(
  x = c(1,2,2,3,3,4), 
  y = c(1,2,1,2,3,4), 
  f = c(1,2,2,3,3,4)
)

p <- ggplot(df, aes(x, y)) +
  geom_point(aes(frame = f))

ggplotly(p)

it works, but with bars…

library(plotly)
library(ggplot2)

df <- data.frame(
  x = c(1,2,2,3,3,4), 
  y = c(1,2,1,2,3,4), 
  f = c(1,2,2,3,3,4)
)

p <- ggplot(df, aes(x, y)) +
  geom_col(aes(frame = f))

ggplotly(p)

throws an error. it happens with geom_bar also.