Histogram hover text for ggplot and plotly with time formatting

Question

I'm looking to plot a histogram of times in R with ggplot and plotly. I have the times saved in seconds. I would like the axis and tooltip/hover text to display the time in MM:SS format though. I can get the axis to work (mostly - it only has 2 labels right now and I'm having trouble getting it to show more), but I cannot get the hover text to work.

Is this possible? I've tried dozens of iterations of this, but here is what I have right now:

p2 <- df %>%
  mutate(time_formatted = gsub("^0+", "",
                               sprintf("%02d:%05.2f",
                                       floor(time_seconds/60),
                                       time_seconds %% 60))) %>%
  mutate(bucketed_time = floor(time_seconds)) %>%
  mutate(hover_text = paste0('Time: ', custom_labels(time_seconds))) %>%
  ggplot(aes(x = time_seconds)) +
  geom_histogram(fill = mako_palette[50],
                 binwidth = 1,
                 position = 'dodge') +
  labs(title = 'Times Histogram')) +
  scale_y_continuous(name = 'Count') + 
  scale_x_reverse(name = 'Time',
                  labels = custom_labels) +
  theme_minimal()

ggplotly(p2, dynamicTicks = FALSE, tooltip = 'text', originalData = TRUE, hoverinfo = 'text', text = ~hover_text) %>%
  config(displayModeBar = FALSE)

with the function:

custom_labels_bucketed <- function(x) {
  minutes <- floor(x / 60)
  seconds <- x %% 60
  sprintf("%d:%02d", minutes, seconds)
}

Per the comments, I've edited to try to share a sample:

structure(list(time_seconds = c(60.46, 50.84, 64.54, 54.1, 59.21, 
73.45, 40.39, 38.31, 69.11, 74.17), name = c("A", "B", 
"C", "D", "E", "F", "G", 
"H", "I", "J")), row.names = c(NA, -10L
), class = c("tbl_df", "tbl", "data.frame"))