Two-column custom page layout - is there a bug?

Its possible the widgets are producing html that is breaking the layout.  Have you tried this layout with different widgets?  Do you see the same result?

Great idea! But I put a generic content widget into the left column and it still appears over on the right. 

The widgets causing the issue are generic content widgets?  If so can you export the page and message it to me, I will take a look.

Agree with Mathew D'Amico - looks like an extra or missing div tag somewhere?

My bad, all! You're right--there was a missing <./div> tag in one of the widgets. Thank you! I will delete this question as soon as you've seen this comment, as it was merely a dumb html mistake on my part :) 

there was a missing <./div> tag in one of the widgets. Thank you! I will delete this question as soon as you've seen this comment, as it was merely a dumb html mistake on my part :) 

I wouldn't delete it...I've done this a million times and came here for answers.  Missing div tags can also break page edit mode depending on where they are at.