When creating or editing an address, the title ADDRESS isn't translatable.
Might be same as issue as this #1900584: Problem translating title of customer profile types ?
Address is translatable via i18n_field, this is the instance label of the commerce customer address field attached to the customer profile. See http://cl.ly/image/0M1a1C2N1K3m
In the attached screenshot (http://cl.ly/image/0M1a1C2N1K3m), Address has been translated in french to "Adresse".
Ok thank you. Now I found the reason. It was transformed to uppercase via css, so it didn't show up as such in the translation filter. Searching for "Address" brings it up correctly.
This issue has no child issues.
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