How to animate multiple R points per date in gganimate

Question

I am working on animating the path of boats through the Pacific. I have a data set with ship ID, lat, lon, and dates. I have successfully been able to plot the points on a map and animate the points.

Once I animate the points, it appears to skip some points in the animation. Look at the differences in path on the static plot above vs. the gif plot below.

Example of the ship data frame info. There are 5 unique ship ID. Some ship ID have multiple lat/lon entries for each datetime. My assumption is that the animation is only revealing one lat/lon for each ship per datetime and thus skipping duplicates hence the missing points in comparison to the static plot.

ship	lat	lon	datetime
382914	49.22597	-124.8141	2022-02-04
351364	54.16689	-179.9273	2022-02-22
...	...	...	...

Code for static plot image:

map1 <- ggplot() +
  geom_polygon(data=mapWorld, aes(x=long, y=lat, group=group), 
                              color= "darkolivegreen", 
                              fill="darkolivegreen") +
   geom_path(data = BOATS, aes(x=lon, 
                               y = lat,
                               group = ship id,
                               color = factor(ship)),
                               size = 1.5, show.legend = FALSE) +
  geom_point(data = BOATS, aes(lon, 
                               lat,
                               group = ship,
                               color = factor(ship)), 
                               alpha = 1, size = 2, shape = 21) +
  
 coord_sf(xlim=c(-180, -115), ylim=c(27,62), expand = FALSE) +
 labs(x="Longitude", 
      y="Latitude") +
 scale_colour_brewer(palette = "Dark2") +
 guides(colour = guide_legend(nrow = 3, 
                              byrow = TRUE, 
                              override.aes = list(size=5))) +
 mapTheme
  
map1

Code for animation:

library(gganimate)
library(gifski)

map1.animation =  map1 + 
                  transition_reveal(along = datetime) + 
                  ease_aes('linear') + 
                  enter_fade() + 
                  exit_fade() 
                
animate(map1.animation, fps = 30,
                        nframes = 360, 
                        width = 1071, 
                        height = 715)


anim_save("Boat Path.gif")