dates not pulling

[glquinn]

hi I am trying to pull some brandwatch mentions data with this package and everything seems to be working fine except in the data column a lot of values are coming up as NA. here is my code:

library(brandwatchR)
library(dplyr)
library(xlsx)

setwd("")

bwr_auth(un = "",
pw = "",
refresh = FALSE,
cache = FALSE)

View(bwr_cat_get(
project_id =
))

my_projects <- bwr_projects_get()
head(my_projects)

my_mentions1 <- bwr_mentions_get(
project_id = ,
query_id = ,
date_range = c("2019-04-01", "2019-08-12"))

my_mentions2 <- bwr_mentions_get(
project_id = ,
query_id = ,
date_range = c("2019-03-01", "2019-04-01"))

my_mentions3 <- bwr_mentions_get(
project_id = ,
query_id = ,
date_range = c("2019-01-20", "2019-03-01"))

my_mentions4 <- bwr_mentions_get(
project_id = ,
query_id = ,
date_range = c("2019-01-18", "2019-01-20"))

my_mentions5 <- bwr_mentions_get(
project_id = ,
query_id = ,
date_range = c("2019-01-17", "2019-01-18"))

my_mentions6 <- bwr_mentions_get(
project_id = ,
query_id = ,
date_range = c("2018-10-1", "2019-01-12"))

glimpse(my_mentions1)

library(dplyr)
my_mentions1 <- my_mentions1 %>%
as_tibble %>%
select(date, sentiment, categories)

my_mentions2 <- my_mentions2 %>%
as_tibble %>%
select(date, sentiment, categories)

my_mentions3 <- my_mentions3 %>%
as_tibble %>%
select(date, sentiment, categories)

my_mentions4 <- my_mentions4 %>%
as_tibble %>%
select(date, sentiment, categories)

my_mentions5 <- my_mentions5 %>%
as_tibble %>%
select(date, sentiment, categories)

my_mentions6 <- my_mentions6 %>%
as_tibble %>%
select(date, sentiment, categories)

my_mentions <- bind_rows(my_mentions1, my_mentions2, my_mentions3, my_mentions4, my_mentions5, my_mentions6)

write.csv(as.matrix(my_mentions), "mentions.csv")

(I have removed project/ query ID and name and password/ setwd)

The resulting CSV is a file with some dates, but most of them are filled with NA.

Any help would be really appreciated!