Im hearing you… this happens to me too! sometimes, it doesnt matter what I vape - an ol’ faithful or new it just tastes like s**t! I get to thinking its just vapers tongue, but then, i think it cant be coz i can taste everything …it just tastes bad.
So, considering there’s no other option, I just roll with it & eventually it seems to pass (…thank God!). I hope it does for you too!