Drilldown transition stops part way through

So far, not able to reproduce this consistently, but several of us have seen it.

I suspect this is a problem with the code that calculates offsets before starting the drilldown animation.

https://github.com/sonatype/nexus-oss/blob/master/plugins/rapture/nexus-rapture-plugin/src/main/resources/static/rapture/NX/view/drilldown/Drilldown.js#L306