<p>It looks like there always have been some problems inherent to the use of the <code>mice</code> package, although this really is a good package. (Sometimes, this is just a matter of reading the doc, but sometimes not.)</p>

<p>I would suggest to post your question here, because multiple imputation is a statistical problem, that can be dealt with several statistical packages, including R. We can migrate it to Stack Overflow if it happens it will be better suited there. It is always difficult to choose between either sites when the question is about a statistical question that is closely linked to a particular software.</p>

<p>About how to make a reproducible example, I am aware of this: <a href="https://stackoverflow.com/q/5963269/420055">How to make a great R reproducible example?</a> If you are concerned with data confidentiality, try to provide a simulated dataset that closely match yours. If this is not possible, consider giving as much information as you can, and report issues with data disclosure.</p>
