cannot search all comment_id for old submission

[mangoeyes]

for example, I'm trying to search all the comment_id for https://www.reddit.com/r/wallstreetbets/comments/47xlnh/options_trading_for_noobspart2/

but the api https://api.pushshift.io/reddit/submission/comment_ids/47xlnh returns empty result.

[quisen]

I have the same problem

https://www.reddit.com/r/history/comments/66otf/the_man_behind_the_sherman_tank/

https://api.pushshift.io/reddit/submission/comment_ids/66otf

[anstrong]

Same issue here. Here's an example post from Feb. 10, 2022: Submission data Reddit page Comment_Id data