Your personal Tumblr library awaits
Uhm... I don't know how to describe it properly but I eventually had this problem for months.
But basically the tag thing when you try to look at specific post at the creator search that show the post you want. But only to found like some of them from the old post, but not ALL of the post regarding the post. Like you knew the creator known for the random fandom, you search of the specific post (like for example you looking for that character, only to found like 10 post on that tag. But you spend your time scrolling the blog, you found that there's more than that.)
I did tried to deleted and uninstall it, but it didn't work. Can anyone solved this problem?