How come when I try to sort this thread by new, all the comments never appear?

Author : csrabbit
Subreddit : help
Points : 1
Published : 6 hours ago
Comments : 1

Beginner question, what is a "Portfolio" exactly?

Author : csrabbit
Subreddit : cscareerquestions
Points : 0
Published : 3 days ago
Comments : 4

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