BBPress forum index looks right in safari but not chrome after duplication using new blog templates

The bbpress forum index located at
looks correct in safari but not in chrome.

Interestingly, the new blog template upon which this forum index is based looks correct on both safari and chrome, as evidenced here:

This suggests to me that something is not being copied over, but don't know where to begin to look. Has anyone seen this before? Any ideas on how to resolve it?