Twitch sub is not shared?

Well, jll knows Vllt, just subscribed to jmd in the 4th month, but it is shown that I'm in the first month. Is that because the streamer has not streamed for a long time and the subscription expires? And besides, I pressed on sub sharing, however, nothing appeared in the chat.

This is Twitch as we know it. Buggy stop. The streamer can see that you are in the 4th month and your subscription should not expire either. If necessary, just ask the streamer if your subs got through.