No. The issue here deals directly with "ecommerce tracking" (which is different from conversion tracking, and different from Goal tracking).
The "0" revenue figures should show under the ecom stats as they are "independent" from the Adwords conversion figures.
Basically, ecommerce tracking records data for ALL transactions that happen at your site, whether they come from Adwords or not. Likewise, ecommerce tracking has with it, its own conversion rate figure (which could, but not always, differ from the conversion tracking figure you get via your adwords "conversion tracking" code).
So the issue here isn't Adwords related as ecommerce tracking doesn't distinguish between the two.
Hope that makes sense.
I never noticed this issue with "0" for revenue figures on certain orders until Google Released the new ga.js tracking code.
I am researching that with Google now to find out if there is a bug on their end that may be causing it.
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