This may just be what happens when the mix steeps and flavors bend as well as fade.
Lemon is the easiest to explain. Just do a simple lemon tester. (Well close your eyes and imagine lol) Do a lemon, a basic light cream like fresh cream, and marshmallow. Days 1 through 4 lemon pops, cream shaves down the harsh lemon note and you get a nice mallow touch. Go to days 5-10. Some of the pop is gone but it’s still great. Then somewhere around 3-4 week mark the lemon no longer pops. You get lemon milk.
This is why I mix for steeping. I would acknowledge that the banana is going to settle. You may need to reduce the white chocolate and accept that banana and white coco are melding in a way you don’t like. From there, sadly you may need to try a different white coco like rf sc or mf. Or even try another banana such as la. All of which is the toughest part of mixing within one manufacturer
This rambleing and lack of grammar has been brought to you while on my vape break from mixing. Lol