More than likely it's one of two things. Either you are experiencing what is called vaper's tongue, or you ordered juice from a conpany that makes it fresh to order. There's lots of info on vaper's tongue. You can do a search and find out all the info but it will go away. Remember to drink PLENTY of water when
vaping. Another health benefit to vaping. You have to stay hydrated or you'll have vaper's tongue a lot. Many juice companies sell juice that it pre steeped, but some make juice once an order has been placed for it. With some flavors that's no big deal, but other flavors need time to develop and can taste very bland when fresh. The fact that you're tasting nothing after trying three different flavors leads me to think that it's classic case of vaper's tongue though. Search the forum and read up on it. It will help