Originally Posted by nukebrewer
I hate to put it forth as a possibility, but the priming sugar may never have been added in the first place. I've heard of it happening to others and it's very nearly happened to me a few times.
Totally almost been there more than once. So fixated on making sure everything is clean, sanitized and where it should be that I start transferring without priming sugar.
The glass cleanliness is a good point too.