EcoPure Zero Nic tastes different?

[Linthorn]

I just love the EcoPure Rich flavor and have been vaping the Medium for a couple of weeks. I just got some Zero Rich to see if I can cut my nic intake. I thought it would taste the same but it really doesn't. It is much weaker in flavor, not just in nic. anyone else experience it? Did I just get a bad bottle?