list_channel_resources omits [[items]][[1]][["id"]] for some usernames

[j1wonkim]

Hi, I am having a problem with the list_channel_resources function with the username filter. I am interested in giving username and getting channel id. The code is generating the desired result for some usernames but not others. For some usernames, tuber will return incomplete results (omit channel id). It does not seem that there is something wrong about the specific usernames I am giving, however. When I run the corresponding function of list_channel_resources with the youtube provided python code (https://google-developers.appspot.com/youtube/v3/code_samples/code_snippet_instructions#toggle-code-snippets-and-full-samples), I get results without NA values.

Following code is what I tried with Tuber, and the csv file is attached below. So the tuber command works for userids$userid[1] but not for userids$userid[2] or userids$userid[3] (userids$userid[2] worked once but not for 20+ other attempts). By not working, I mean, they give empty list for [items] in tmp, unlike userids$userid[1]'s result giving [[1]] that consists of [kind], [etag], and [id]. Both of them works in python code and gives me channel ids.
Username.zip

userids<-read.csv('clean_user_id.csv')
user_channelid<-list()
#loop
for(i in 1:69){
k=userids$userid[i]
tmp<-list_channel_resources(filter=c(username=k), part="id")
user_channelid[i]<-tmp[["items"]][[1]][["id"]]
print(i)
}

#individual
k=userids$userid[3]
k
tmp<-list_channel_resources(filter=c(username=k), part="id")
"list_channel_resources"
tmp[["items"]][[1]][["id"]]

^{Created on 2019-03-19 by the reprex package (v0.2.1)}

[soodoku]

A reproducible example, say with a list of userids for which you are not getting the results, @j1wonkim, would help a lot.