No, this has been an ongoing thing...I get the same thing. I've been adding a tad of whiskey to the e-liquids, but it still seems to be one of those Low-Vapor producing liquids. My only option is to keep making it, knowing it's a low vapor producing liquid, or scrap it altogether. This isn't exactly a flavor that one can buy by the gallon on the market.
We make ours from macerating Tobacco in PG for a week. It absorbs all the flavor, tastes just fine, but having soaked with plant matter seems to alter the PG.
The Whiskey improves the vapor production and brings out the flavor a bit more, but nothing that will produce clouds of vapor.