Sour tasting cigar

[Smokestack Jack]

Last night I lit up a Bolivar Cofradia. For some reason the first few puffs had a sour taste to them. I thought maybe the coffee I was drinking altered the taste of the cigar, so I opted for a glass of water. The cigar still tasted sour. I smoked about an inch of it and had to stop. It left a horrible taste in my mouth. This box of Bolivars has been sitting in my fridgedor for almost a year now. I don't remember the last one I smoked tasting so bad. I'll try another one tonight. Hopefully it was just a bad one in the bunch.
Anyone have problems like this before?