Why is there some intermittent colour (green) when using gganimate()?

I installed gganimate on Rstudio and followed the examples on their vignette:

library(ggplot2)  library(gganimate)  library(gapminder)    ggplot(gapminder, aes(gdpPercap, lifeExp, size = pop, colour = country)) +       geom_point(alpha = 0.7, show.legend = FALSE) +       scale_colour_manual(values = country_colors) +       scale_size(range = c(2, 12)) +       scale_x_log10() +       facet_wrap(~continent) +       # Here comes the gganimate specific bits       labs(title = 'Year: {frame_time}', x = 'GDP per capita', y = 'life expectancy') +       transition_time(year) +       ease_aes('linear')  

However, when rendering the animation, it displays an intermittent green blip that makes it impossible to distinguish what is happening. I understand it is not a problem of gganimate but the rendering process. Certainly, I don't know what else to do.

In this link is the animation created

platform       x86_64-apple-darwin17.0       arch           x86_64                        os             darwin17.0                    system         x86_64, darwin17.0            status                                       major          4                             minor          0.4                           year           2021                          month          02                            day            15                            svn rev        80002                         language       R                             version.string R version 4.0.4 (2021-02-15)  nickname       Lost Library Book             

https://stackoverflow.com/questions/66576245/why-is-there-some-intermittent-colour-green-when-using-gganimate March 11, 2021 at 11:55AM