I was at a local establishment and was drinking Bell's Two Hearted on draft. The first one was nice and clear and tasted great. I ordered another one and it was very cloudy. It tasted just fine, so I didn't say anything. It never did clear up at all. Just wondering why this was. I'm fairly new to the craft beer scene and almost never order a draft beer.
Two hearted has yeast in the keg. At the end it gets disturbed as the beer level goes down, and slumps to the pick up. I refuse those pints, as too much yeast causes me gastrointestinal problems.
Another possible but less likely scenario is that a new keg that had gotten too cold and chill-hazed got tapped - doesn't sound likely in your situation since we know that didn't happen with your first glass.