GUYS I FIGURED IT OUT
the new tumblr mobile update made it so that if you tap a tag on someone’s blog it takes you to the actual tag in tumblr (which is dumb and pointless)
if you want to got to the tag on the person’s blog, you have to hold down on the tag for a few seconds, then you’re able to select whether you want to search all of tumblr or just that blog
hope this helped any of you having the same trouble that I did
But why? If I hit a blog, I wanna go to their blog, not their tag. What it should be is you hold it down if you wanna see their tag but their blog should be default.