TweetSharp doesn't post tweets with comma (%2C) in URL

Question

I posting tweets using TweetSharp (https://www.nuget.org/packages/TweetSharp/) in VB.NET console app:

msg = "TEST https://idioms.thefreedictionary.com/devil+take+the+hindmost%2c+the"
service.SendTweet(New SendTweetOptions With {.Status = msg })

Everything works fine unless URL contains comma. In this case, nothing get posted (no error, just nothing happens). If I remove %2c from the example above, the tweet posts fine.

If I post the same tweet manually (from website twitter.com), everything works fine.

Answer 1

The problem solved. It turns out that if comma is not be encoded, all works:

msg = "TEST https://idioms.thefreedictionary.com/devil+take+the+hindmost,+the"
service.SendTweet(New SendTweetOptions With {.Status = msg })

Still not sure if this is standard requirement or a bug of TweetSharp. And how I should treat other punctuation marks.