Avatar image cropping issues: bp-social

I'm experiencing an odd cropping issue. The image uploads fine; however, when the cropper gets it, the crop-square seems to behave strangely and the right 3/4 of the image seems to be unavailable to the cropper.

This only occurs when using BuddySocial, not the default theme.

Three images showing the problem are at: http://webspryconsulting.com/avatar-cropping-issue. I've used a screenshot of a newspaper site so you can more clearly see the problem.

Cache has been cleared, this is a fresh install, and I've tried with plugins disabled (except BP, of course) and the mu-plugins directory empty.