Tiktoks (new?) Problem?

Just a quick rant. Maybe this is new to me, but im hating the "new thing" they do, well at least on my account. Every time I post a new video, its not getting the usual likes or views that I do even if I post within my niches. However, instead of the new video being pushed out, it makes my older videos start circulating for some reason. Say I posted a video today, that video gets likes and then stops after a few hours, but then a video i posted maybe two weeks ago starts doing numbers that same day. It's been happening every time I post a new video, like a vicious cycle. I dont know if this is a problem or someone else has ran into it? It's freaking weird and annoying or maybe im over analyzing this, who knows.